chore: update version number to 0.1.56

fix(list): anchor the unread dot on the first line, not the row midpoint

.github/workflows/release-ios.yml

@@ -0,0 +1,274 @@
+name: Release iOS (TestFlight)
+
+# The iOS project is NOT committed - unlike android/, which is hand-maintained,
+# ios/ is gitignored and generated fresh by `expo prebuild` on every run. Keep
+# any native iOS change in app.config.js (or a config plugin), never in ios/.
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+    inputs:
+      upload_to_testflight:
+        description: "Upload the build to TestFlight (off = build the IPA only)"
+        type: boolean
+        required: false
+        default: true
+
+concurrency:
+  group: release-ios-${{ github.ref }}
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: macos-latest
+    timeout-minutes: 90
+    permissions:
+      contents: write
+    env:
+      EXPO_NO_TELEMETRY: "1"
+      # App Store Connect refuses a CFBundleVersion it has already seen for this
+      # marketing version, so every run needs a fresh, increasing number.
+      IOS_BUILD_NUMBER: ${{ github.run_number }}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+
+      - name: Show toolchain versions
+        run: |
+          xcodebuild -version
+          pod --version
+
+      - name: Cache CocoaPods
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/Library/Caches/CocoaPods
+            ~/.cocoapods/repos
+          key: pods-${{ runner.os }}-${{ hashFiles('package-lock.json') }}
+          restore-keys: pods-${{ runner.os }}-
+
+      - name: Install JS dependencies
+        run: npm ci
+
+      - name: Generate the iOS project
+        run: npx expo prebuild --platform ios --clean
+
+      - name: Check for signing credentials
+        id: creds
+        env:
+          CERT: ${{ secrets.IOS_DIST_CERT_BASE64 }}
+          ASC_KEY: ${{ secrets.APP_STORE_CONNECT_PRIVATE_KEY }}
+          TEAM: ${{ secrets.APPLE_TEAM_ID }}
+          PROFILE: ${{ secrets.IOS_PROVISIONING_PROFILE_BASE64 }}
+        run: |
+          if [ -n "$CERT" ] && [ -n "$ASC_KEY" ] && [ -n "$TEAM" ] && [ -n "$PROFILE" ]; then
+            echo "signed=true" >> "$GITHUB_OUTPUT"
+          else
+            echo "signed=false" >> "$GITHUB_OUTPUT"
+            echo "::notice::Signing secrets are not configured - compiling without signing. No IPA will be produced."
+          fi
+
+      - name: Resolve workspace and scheme
+        id: xcode
+        run: |
+          WORKSPACE=$(ls -d ios/*.xcworkspace | head -1)
+          SCHEME=$(basename "$WORKSPACE" .xcworkspace)
+          echo "workspace=$WORKSPACE" >> "$GITHUB_OUTPUT"
+          echo "scheme=$SCHEME" >> "$GITHUB_OUTPUT"
+          echo "Using workspace $WORKSPACE, scheme $SCHEME"
+
+      # ── Unsigned path: a compile check only, so the workflow is still useful
+      # on forks and before the Apple secrets exist.
+      - name: Build without signing
+        if: steps.creds.outputs.signed != 'true'
+        run: |
+          xcodebuild build \
+            -workspace "${{ steps.xcode.outputs.workspace }}" \
+            -scheme "${{ steps.xcode.outputs.scheme }}" \
+            -configuration Release \
+            -destination 'generic/platform=iOS' \
+            CODE_SIGNING_ALLOWED=NO \
+            CODE_SIGNING_REQUIRED=NO \
+            CODE_SIGN_IDENTITY=""
+
+      # ── Signed path ────────────────────────────────────────────
+      - name: Import the distribution certificate
+        if: steps.creds.outputs.signed == 'true'
+        env:
+          CERT_BASE64: ${{ secrets.IOS_DIST_CERT_BASE64 }}
+          CERT_PASSWORD: ${{ secrets.IOS_DIST_CERT_PASSWORD }}
+        run: |
+          KEYCHAIN="$RUNNER_TEMP/build.keychain-db"
+          # Ephemeral runner, ephemeral keychain - this password protects nothing
+          # beyond the life of the job.
+          KEYCHAIN_PASSWORD=$(uuidgen)
+          security create-keychain -p "$KEYCHAIN_PASSWORD" "$KEYCHAIN"
+          security set-keychain-settings -lut 21600 "$KEYCHAIN"
+          security unlock-keychain -p "$KEYCHAIN_PASSWORD" "$KEYCHAIN"
+
+          echo "$CERT_BASE64" | base64 -d > "$RUNNER_TEMP/dist.p12"
+          security import "$RUNNER_TEMP/dist.p12" -k "$KEYCHAIN" -P "$CERT_PASSWORD" \
+            -T /usr/bin/codesign -T /usr/bin/security -f pkcs12
+          rm -f "$RUNNER_TEMP/dist.p12"
+
+          # Without this, codesign triggers an interactive keychain prompt that
+          # nothing can answer on a headless runner.
+          security set-key-partition-list -S apple-tool:,apple:,codesign: \
+            -s -k "$KEYCHAIN_PASSWORD" "$KEYCHAIN" > /dev/null
+
+          # Put our keychain first in the search list, keeping the login one so
+          # Xcode can still reach Apple's intermediate certificates.
+          security list-keychains -d user -s "$KEYCHAIN" $(security list-keychains -d user | sed 's/"//g')
+          security find-identity -v -p codesigning "$KEYCHAIN"
+
+      - name: Install the App Store Connect API key
+        if: steps.creds.outputs.signed == 'true'
+        env:
+          ASC_KEY_BASE64: ${{ secrets.APP_STORE_CONNECT_PRIVATE_KEY }}
+          ASC_KEY_ID: ${{ secrets.APP_STORE_CONNECT_KEY_ID }}
+        run: |
+          # altool looks the key up by ID in this directory.
+          mkdir -p ~/private_keys
+          echo "$ASC_KEY_BASE64" | base64 -d > ~/private_keys/AuthKey_${ASC_KEY_ID}.p8
+          chmod 600 ~/private_keys/AuthKey_${ASC_KEY_ID}.p8
+
+      - name: Install the provisioning profile
+        if: steps.creds.outputs.signed == 'true'
+        id: profile
+        env:
+          PROFILE_BASE64: ${{ secrets.IOS_PROVISIONING_PROFILE_BASE64 }}
+        run: |
+          PROFILE="$RUNNER_TEMP/profile.mobileprovision"
+          echo "$PROFILE_BASE64" | base64 -d > "$PROFILE"
+
+          # A .mobileprovision is a CMS-signed plist, so it has to be decoded
+          # before anything inside it can be read.
+          PLIST=$(security cms -D -i "$PROFILE")
+          UUID=$(echo "$PLIST" | plutil -extract UUID raw -)
+          NAME=$(echo "$PLIST" | plutil -extract Name raw -)
+          # application-identifier is "TEAMID.bundle.id" - deriving the bundle ID
+          # from the profile keeps ExportOptions honest if app.config.js changes.
+          APP_ID=$(echo "$PLIST" | plutil -extract Entitlements.application-identifier raw -)
+          BUNDLE_ID="${APP_ID#*.}"
+          EXPIRY=$(echo "$PLIST" | plutil -extract ExpirationDate raw -)
+
+          # Xcode moved the profile directory in 16; write both so this does not
+          # silently stop working on a runner image bump.
+          mkdir -p ~/Library/MobileDevice/Provisioning\ Profiles
+          mkdir -p ~/Library/Developer/Xcode/UserData/Provisioning\ Profiles
+          cp "$PROFILE" ~/Library/MobileDevice/Provisioning\ Profiles/"$UUID".mobileprovision
+          cp "$PROFILE" ~/Library/Developer/Xcode/UserData/Provisioning\ Profiles/"$UUID".mobileprovision
+
+          echo "uuid=$UUID" >> "$GITHUB_OUTPUT"
+          echo "name=$NAME" >> "$GITHUB_OUTPUT"
+          echo "bundle_id=$BUNDLE_ID" >> "$GITHUB_OUTPUT"
+          echo "Profile '$NAME' ($UUID) for $BUNDLE_ID, expires $EXPIRY"
+
+      - name: Archive
+        if: steps.creds.outputs.signed == 'true'
+        env:
+          TEAM_ID: ${{ secrets.APPLE_TEAM_ID }}
+        run: |
+          # Manual signing, deliberately. Automatic signing always signs the
+          # archive with a *development* identity and relies on -exportArchive to
+          # re-sign it for distribution afterwards - which needs a development
+          # certificate and a registered device that a CI-only TestFlight
+          # pipeline has no reason to own. Naming the App Store profile up front
+          # skips that dance entirely.
+          xcodebuild archive \
+            -workspace "${{ steps.xcode.outputs.workspace }}" \
+            -scheme "${{ steps.xcode.outputs.scheme }}" \
+            -configuration Release \
+            -destination 'generic/platform=iOS' \
+            -archivePath "$RUNNER_TEMP/Bulwark.xcarchive" \
+            CODE_SIGN_STYLE=Manual \
+            DEVELOPMENT_TEAM="$TEAM_ID" \
+            CODE_SIGN_IDENTITY="Apple Distribution" \
+            PROVISIONING_PROFILE_SPECIFIER="${{ steps.profile.outputs.uuid }}"
+
+      # Signing failures report a symptom ("no profiles found") rather than the
+      # setting that caused it, and a re-run costs ~30 minutes. Dump the
+      # resolved values instead of guessing twice.
+      - name: Dump signing settings
+        if: failure() && steps.creds.outputs.signed == 'true'
+        continue-on-error: true
+        run: |
+          echo "── identities in the keychain ──"
+          security find-identity -v -p codesigning || true
+          echo "── resolved build settings ──"
+          xcodebuild -workspace "${{ steps.xcode.outputs.workspace }}" \
+            -scheme "${{ steps.xcode.outputs.scheme }}" \
+            -configuration Release -showBuildSettings 2>/dev/null \
+            | grep -Ei 'CODE_SIGN|PROVISIONING|DEVELOPMENT_TEAM|PRODUCT_BUNDLE_ID' | sort -u || true
+
+      - name: Export the IPA
+        if: steps.creds.outputs.signed == 'true'
+        id: export
+        env:
+          TEAM_ID: ${{ secrets.APPLE_TEAM_ID }}
+          PROFILE_NAME: ${{ steps.profile.outputs.name }}
+          BUNDLE_ID: ${{ steps.profile.outputs.bundle_id }}
+        run: |
+          cat > "$RUNNER_TEMP/ExportOptions.plist" <<PLIST
+          <?xml version="1.0" encoding="UTF-8"?>
+          <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+          <plist version="1.0">
+          <dict>
+            <key>method</key><string>app-store</string>
+            <key>teamID</key><string>${TEAM_ID}</string>
+            <key>signingStyle</key><string>manual</string>
+            <key>signingCertificate</key><string>Apple Distribution</string>
+            <key>provisioningProfiles</key>
+            <dict>
+              <key>${BUNDLE_ID}</key><string>${PROFILE_NAME}</string>
+            </dict>
+            <key>uploadSymbols</key><true/>
+            <key>destination</key><string>export</string>
+          </dict>
+          </plist>
+          PLIST
+
+          xcodebuild -exportArchive \
+            -archivePath "$RUNNER_TEMP/Bulwark.xcarchive" \
+            -exportPath "$RUNNER_TEMP/export" \
+            -exportOptionsPlist "$RUNNER_TEMP/ExportOptions.plist"
+
+          VERSION=$(cat VERSION | tr -d '[:space:]')
+          SRC=$(ls "$RUNNER_TEMP"/export/*.ipa | head -1)
+          DEST="bulwark-mobile-${VERSION}-${GITHUB_SHA::7}.ipa"
+          cp "$SRC" "$DEST"
+          echo "path=$DEST" >> "$GITHUB_OUTPUT"
+          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
+
+      - uses: actions/upload-artifact@v4
+        if: steps.creds.outputs.signed == 'true'
+        with:
+          name: ${{ steps.export.outputs.path }}
+          path: ${{ steps.export.outputs.path }}
+          if-no-files-found: error
+
+      - name: Upload to TestFlight
+        # The IPA is not attached to the GitHub release: without an Apple device
+        # provisioned for it, it is not installable, and TestFlight is the only
+        # distribution channel for it.
+        if: >-
+          steps.creds.outputs.signed == 'true' &&
+          (github.event_name == 'release' || inputs.upload_to_testflight)
+        env:
+          ASC_KEY_ID: ${{ secrets.APP_STORE_CONNECT_KEY_ID }}
+          ASC_ISSUER_ID: ${{ secrets.APP_STORE_CONNECT_ISSUER_ID }}
+        run: |
+          IPA="${{ steps.export.outputs.path }}"
+          # Validate first - it catches missing Info.plist keys and entitlement
+          # mistakes in seconds, instead of via a rejection email 20 minutes later.
+          xcrun altool --validate-app --type ios --file "$IPA" \
+            --apiKey "$ASC_KEY_ID" --apiIssuer "$ASC_ISSUER_ID"
+          xcrun altool --upload-app --type ios --file "$IPA" \
+            --apiKey "$ASC_KEY_ID" --apiIssuer "$ASC_ISSUER_ID"
+          echo "::notice::Uploaded build ${IOS_BUILD_NUMBER} to App Store Connect. Processing usually takes 5-30 minutes before it appears in TestFlight."

README.md

@@ -1,9 +1,9 @@
 <div align="center">
 
 <picture>
-  <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/bulwarkmail/webmail/refs/heads/main//public/branding/Bulwark_Logo_with_Lettering_White_and_Color.svg" />
-  <source media="(prefers-color-scheme: light)" srcset="https://raw.githubusercontent.com/bulwarkmail/webmail/refs/heads/main//public/branding/Bulwark_Logo_with_Lettering_Dark_Color.svg" />
-  <img src="https://raw.githubusercontent.com/bulwarkmail/webmail/refs/heads/main//public/branding/Bulwark_Logo_with_Lettering_Dark_Color.svg" alt="Bulwark Webmail" width="280" />
+  <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/bulwarkmail/webmail/refs/heads/main/public/branding/Bulwark_Logo_with_Lettering_White_and_Color.svg" />
+  <source media="(prefers-color-scheme: light)" srcset="https://raw.githubusercontent.com/bulwarkmail/webmail/refs/heads/main/public/branding/Bulwark_Logo_with_Lettering_Dark_Color.svg" />
+  <img src="https://raw.githubusercontent.com/bulwarkmail/webmail/refs/heads/main/public/branding/Bulwark_Logo_with_Lettering_Dark_Color.svg" alt="Bulwark Webmail" width="280" />
 </picture>
 
 </div>
@@ -26,10 +26,10 @@ React Native (Expo SDK 54) client for [Bulwark Webmail](https://github.com/bulwa
 
 ## What's missing or rough
 
-- iOS build is untested
+- iOS builds, but push notifications and client certificates are Android-only so far
 - Filters & rules, S/MIME, plugins, themes, file storage - UI stubs only
 - Calendar editing is partial; contacts editing is basic
-- No Play Store distribution yet (sideload APK from Releases)
+- No Play Store distribution yet (sideload APK from Releases); iOS ships via TestFlight
 
 ## Run locally
 
@@ -41,6 +41,7 @@ npx expo start
 Then press `a` for Android, `i` for iOS, or scan the QR with Expo Go.
 
 For a release APK build see [.github/workflows/release-android.yml](.github/workflows/release-android.yml).
+For iOS builds and TestFlight distribution see [docs/ios-release.md](docs/ios-release.md).
 
 ## License
 

VERSION

@@ -1 +1 @@
-0.1.50
+0.1.56

app.config.js

@@ -16,6 +16,12 @@ if (!COMMIT) {
 }
 COMMIT = COMMIT.slice(0, 7);
 
+// App Store Connect rejects a build whose CFBundleVersion it has already seen
+// for this CFBundleShortVersionString, so this has to advance on every upload
+// even when VERSION does not. CI passes the workflow run number; local builds
+// fall back to 1 (never uploaded).
+const IOS_BUILD_NUMBER = process.env.IOS_BUILD_NUMBER || '1';
+
 module.exports = {
   expo: {
     name: 'Bulwark Mobile',
@@ -33,6 +39,14 @@ module.exports = {
     },
     ios: {
       supportsTablet: true,
+      bundleIdentifier: 'org.bulwarkmail.mobile',
+      buildNumber: IOS_BUILD_NUMBER,
+      config: {
+        // The app only speaks HTTPS/TLS and uses platform crypto, which is
+        // exempt. Declaring it here skips the manual export-compliance
+        // questionnaire that otherwise blocks every TestFlight build.
+        usesNonExemptEncryption: false,
+      },
     },
     android: {
       adaptiveIcon: {
@@ -55,6 +69,19 @@ module.exports = {
         {
           cameraPermission:
             'Bulwark Mail uses the camera to scan sign-in QR codes shown in webmail.',
+          // QR scanning never records audio; leaving the mic entry in would be
+          // an unexplained permission in App Review.
+          microphonePermission: false,
+        },
+      ],
+      [
+        'expo-image-picker',
+        {
+          photosPermission:
+            'Bulwark Mail needs access to your photos so you can attach them to emails and set contact photos.',
+          // Only launchImageLibraryAsync is used - no in-app capture.
+          cameraPermission: false,
+          microphonePermission: false,
         },
       ],
     ],

docs/ios-release.md

@@ -0,0 +1,159 @@
+# iOS builds and TestFlight
+
+The iOS app is built by [.github/workflows/release-ios.yml](../.github/workflows/release-ios.yml)
+on a GitHub-hosted macOS runner and uploaded straight to TestFlight. macOS runner
+minutes are free for this repository because it is public.
+
+Unlike `android/`, which is committed and hand-maintained, **`ios/` is gitignored
+and regenerated by `expo prebuild` on every run.** Never commit it, and never fix
+anything by editing it - native iOS changes belong in `app.config.js` or a config
+plugin, or they will be silently thrown away on the next build.
+
+Without the secrets below the workflow still runs, but only as an unsigned
+compile check; no IPA is produced.
+
+## One-time Apple setup
+
+You need an active Apple Developer Program membership ($99/yr). Everything here
+can be done from Windows - no Mac required.
+
+### 1. Team ID
+
+developer.apple.com → Account → Membership details. A 10-character string like
+`A1B2C3D4E5`.
+
+### 2. Distribution certificate
+
+Apple issues certificates against a certificate signing request. Keychain Access
+is the usual way to make one, but OpenSSL works and does not need a Mac:
+
+```bash
+openssl genrsa -out dist.key 2048
+openssl req -new -key dist.key -out dist.csr \
+  -subj "/emailAddress=you@bulwarkmail.org/CN=Bulwark Mail/C=DE"
+```
+
+Upload `dist.csr` at developer.apple.com → Certificates → **+** → **Apple
+Distribution**, download the resulting `distribution.cer`, then bundle the cert
+and its private key into a `.p12`:
+
+```bash
+openssl x509 -inform DER -in distribution.cer -out dist.pem
+openssl pkcs12 -export -inkey dist.key -in dist.pem -out dist.p12 \
+  -passout pass:CHOOSE_A_PASSWORD
+```
+
+**On OpenSSL 3.x, add `-legacy` to that last command.** OpenSSL 3 defaults to
+AES-256-CBC, which macOS `security import` refuses to read, and the workflow then
+fails at the import step. OpenSSL 1.x has no `-legacy` flag and already writes
+the format macOS wants - passing it there is an error. Check with `openssl
+version` first; Git Bash on Windows currently ships 1.1.1.
+
+Keep `dist.key` somewhere safe - you cannot re-download it, and losing it means
+revoking the certificate and starting over.
+
+### 3. App Store Connect API key
+
+App Store Connect → Users and Access → Integrations → App Store Connect API →
+**+**, with the **App Manager** role. Download the `.p8` (**one download only**)
+and note the **Key ID** and the **Issuer ID** shown above the key list.
+
+The key authenticates the TestFlight upload.
+
+### 4. App ID, then app record
+
+These live on two different Apple sites and have to be done in this order.
+
+**developer.apple.com** → Certificates, Identifiers & Profiles → Identifiers →
+**+** → App IDs → App. Explicit bundle ID `org.bulwarkmail.mobile`, matching
+`ios.bundleIdentifier` in [app.config.js](../app.config.js). Leave every
+capability off: push is not implemented on iOS, and sign-in uses the custom
+`bulwarkmobile://` scheme rather than universal links, so no Associated Domains.
+
+**appstoreconnect.apple.com** → Apps → **+** → New App. Platform iOS, any SKU.
+The bundle ID here is a dropdown populated from the identifiers above, which is
+why the App ID has to be registered first. The app name must be unique across
+the entire App Store.
+
+The TestFlight upload is rejected if the app record does not exist - and that
+failure lands at the very end of a ~30 minute build.
+
+### 5. App Store provisioning profile
+
+developer.apple.com → Profiles → **+** → Distribution → **App Store Connect**.
+Pick the App ID from step 4 and the distribution certificate from step 2, name it
+`Bulwark Mobile App Store`, and download the `.mobileprovision`.
+
+The build signs **manually** and this profile is not optional. Automatic signing
+would be less to maintain, but `xcodebuild archive` under automatic signing always
+signs with a *development* identity and leans on `-exportArchive` to re-sign for
+distribution afterwards. That needs a development certificate and at least one
+registered device - neither of which a CI-only TestFlight pipeline has any reason
+to own, and Apple will not issue a development profile without a device. Naming
+the App Store profile up front avoids the whole problem.
+
+The profile expires when the certificate does (2027-08-01). Regenerate it here and
+update the secret when that happens.
+
+## Repository secrets
+
+Settings → Secrets and variables → Actions:
+
+| Secret | Value |
+| --- | --- |
+| `APPLE_TEAM_ID` | The 10-character team ID from step 1 |
+| `IOS_DIST_CERT_BASE64` | `dist.p12` from step 2, base64-encoded |
+| `IOS_DIST_CERT_PASSWORD` | The password you chose for `dist.p12` |
+| `APP_STORE_CONNECT_KEY_ID` | Key ID from step 3 |
+| `APP_STORE_CONNECT_ISSUER_ID` | Issuer ID from step 3 |
+| `APP_STORE_CONNECT_PRIVATE_KEY` | The `.p8` from step 3, base64-encoded |
+| `IOS_PROVISIONING_PROFILE_BASE64` | The `.mobileprovision` from step 5, base64-encoded |
+
+To base64-encode a file:
+
+```powershell
+# PowerShell
+[Convert]::ToBase64String([IO.File]::ReadAllBytes('dist.p12')) | Set-Clipboard
+```
+
+```bash
+# bash
+base64 -w0 dist.p12
+```
+
+## Running a build
+
+Publishing a GitHub release triggers the iOS workflow alongside the Android one.
+You can also run it by hand from the Actions tab, with an
+`upload_to_testflight` toggle if you only want the IPA as a workflow artifact.
+
+The IPA is deliberately not attached to the GitHub release: unlike the APK, it is
+not installable outside TestFlight.
+
+`CFBundleVersion` comes from the workflow run number via the `IOS_BUILD_NUMBER`
+env var. App Store Connect rejects a build number it has already seen for a given
+version, so never re-run a workflow expecting a re-upload to succeed - the run
+number advances on its own, so just start a new run.
+
+## After the upload
+
+Processing takes roughly 5-30 minutes before the build shows up in TestFlight.
+Internal testers (up to 100, must be on your App Store Connect team) get it
+immediately. External testers (up to 10,000) need a Beta App Review, which takes
+about a day the first time and is usually waved through afterwards.
+
+## What does not work on iOS yet
+
+- **Push notifications.** The push path is a hand-written Android module talking
+  to FCM (`BulwarkFcmModule`, `BulwarkMessagingService`). iOS needs an APNs key
+  and an equivalent native module; until then `push-notifications.ts` short-
+  circuits and the app polls like a device with push disabled.
+- **Client certificates.** `BulwarkClientCertModule` is Android-only.
+  `secureFetch` falls back to plain `fetch`, so cert-authenticated servers will
+  not connect.
+- **In-app updates.** Hidden on purpose - see `supportsSideloadUpdates` in
+  [src/lib/platform-capabilities.ts](../src/lib/platform-capabilities.ts).
+  Downloading and installing a binary is forbidden by App Store Review guideline
+  2.5.2, so iOS updates come through TestFlight instead. The Updates settings
+  pane is removed from the list on iOS; the version and commit are still shown
+  under About & Data.

locales/en/common.json

@@ -497,6 +497,7 @@
     "drop_files": "Drop files to attach",
     "show_less": "Show less",
     "send_failed": "Failed to send email",
+    "editor_unavailable": "Could not read the message content. Copy your text, then close and reopen the composer.",
     "continue_draft": "Continue draft",
     "close_draft_title": "Save or discard draft?",
     "close_draft_message": "You have unsaved changes. Would you like to save this as a draft or discard it?",

mockups/login.html

@@ -0,0 +1,953 @@
+<title>Bulwark Mobile — Sign-in redesign</title>
+<meta name="viewport" content="width=device-width, initial-scale=1" />
+
+<svg width="0" height="0" style="position:absolute" aria-hidden="true">
+  <defs>
+    <symbol id="i-qr" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
+      <rect x="3" y="3" width="7" height="7" rx="1" /><rect x="14" y="3" width="7" height="7" rx="1" />
+      <rect x="3" y="14" width="7" height="7" rx="1" /><path d="M14 14h3v3h-3z" /><path d="M21 14v3M21 21h-4" />
+    </symbol>
+    <symbol id="i-mail" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
+      <rect x="2" y="4" width="20" height="16" rx="2" /><path d="m2 7 10 6 10-6" />
+    </symbol>
+    <symbol id="i-chev" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+      <path d="m9 18 6-6-6-6" />
+    </symbol>
+    <symbol id="i-back" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+      <path d="m15 18-6-6 6-6" />
+    </symbol>
+    <symbol id="i-lock" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
+      <rect x="4" y="10" width="16" height="11" rx="2" /><path d="M8 10V7a4 4 0 0 1 8 0v3" />
+    </symbol>
+    <symbol id="i-globe" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
+      <circle cx="12" cy="12" r="9" /><path d="M3 12h18M12 3a15 15 0 0 1 0 18M12 3a15 15 0 0 0 0 18" />
+    </symbol>
+    <symbol id="i-check" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.4" stroke-linecap="round" stroke-linejoin="round">
+      <path d="m4 12 5 5L20 6" />
+    </symbol>
+    <symbol id="i-alert" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
+      <circle cx="12" cy="12" r="9" /><path d="M12 7v6M12 16.5v.5" />
+    </symbol>
+    <symbol id="i-x" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+      <path d="M6 6 18 18M18 6 6 18" />
+    </symbol>
+    <symbol id="i-eye" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
+      <path d="M2 12s3.6-6.5 10-6.5S22 12 22 12s-3.6 6.5-10 6.5S2 12 2 12Z" /><circle cx="12" cy="12" r="2.6" />
+    </symbol>
+    <symbol id="i-shield" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
+      <path d="M12 3 5 6v6c0 4.2 2.9 7.6 7 9 4.1-1.4 7-4.8 7-9V6l-7-3Z" />
+    </symbol>
+    <symbol id="i-plus" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+      <path d="M12 5v14M5 12h14" />
+    </symbol>
+    <symbol id="i-key" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
+      <circle cx="7.5" cy="15.5" r="4.5" /><path d="m10.8 12.2 8-8M17 6l2.5 2.5M14.5 8.5 17 11" />
+    </symbol>
+  </defs>
+</svg>
+
+<style>
+  :root {
+    --page-bg: #fbfbfc;
+    --page-panel: #f0f3f8;
+    --page-ink: #14171f;
+    --page-ink-2: #545c6b;
+    --page-ink-3: #8a919f;
+    --page-rule: #e1e6ef;
+    --accent: #2f6fed;
+    --accent-soft: rgba(47, 111, 237, 0.09);
+
+    --app-bg: #ffffff;
+    --app-surface: #f8fafc;
+    --app-surface-2: #f1f5f9;
+    --app-border: #e2e8f0;
+    --app-text: #0f172a;
+    --app-text-2: #64748b;
+    --app-muted: #94a3b8;
+    --app-primary: #3b82f6;
+    --app-primary-bg: #dbeafe;
+    --app-error: #ef4444;
+    --app-error-bg: #fee2e2;
+    --app-success: #16a34a;
+
+    --frame: #d5dae5;
+    --frame-shadow: rgba(20, 26, 40, 0.14);
+
+    --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
+    --sans: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
+    --mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;
+  }
+
+  @media (prefers-color-scheme: dark) {
+    :root {
+      --page-bg: #0a0b0d;
+      --page-panel: #111319;
+      --page-ink: #eef1f6;
+      --page-ink-2: #a4adbb;
+      --page-ink-3: #6e7684;
+      --page-rule: #22262f;
+      --accent: #74aaff;
+      --accent-soft: rgba(116, 170, 255, 0.12);
+
+      --app-bg: #09090b;
+      --app-surface: #18181b;
+      --app-surface-2: #1f1f23;
+      --app-border: #27272a;
+      --app-text: #fafafa;
+      --app-text-2: #a1a1aa;
+      --app-muted: #71717a;
+      --app-primary: #3b82f6;
+      --app-primary-bg: #172554;
+      --app-error: #ef4444;
+      --app-error-bg: #450a0a;
+      --app-success: #22c55e;
+
+      --frame: #2b303a;
+      --frame-shadow: rgba(0, 0, 0, 0.55);
+    }
+  }
+
+  :root[data-theme="light"] {
+    --page-bg: #fbfbfc; --page-panel: #f0f3f8; --page-ink: #14171f; --page-ink-2: #545c6b;
+    --page-ink-3: #8a919f; --page-rule: #e1e6ef; --accent: #2f6fed; --accent-soft: rgba(47,111,237,0.09);
+    --app-bg: #ffffff; --app-surface: #f8fafc; --app-surface-2: #f1f5f9; --app-border: #e2e8f0;
+    --app-text: #0f172a; --app-text-2: #64748b; --app-muted: #94a3b8; --app-primary: #3b82f6;
+    --app-primary-bg: #dbeafe; --app-error: #ef4444; --app-error-bg: #fee2e2; --app-success: #16a34a;
+    --frame: #d5dae5; --frame-shadow: rgba(20,26,40,0.14);
+  }
+  :root[data-theme="dark"] {
+    --page-bg: #0a0b0d; --page-panel: #111319; --page-ink: #eef1f6; --page-ink-2: #a4adbb;
+    --page-ink-3: #6e7684; --page-rule: #22262f; --accent: #74aaff; --accent-soft: rgba(116,170,255,0.12);
+    --app-bg: #09090b; --app-surface: #18181b; --app-surface-2: #1f1f23; --app-border: #27272a;
+    --app-text: #fafafa; --app-text-2: #a1a1aa; --app-muted: #71717a; --app-primary: #3b82f6;
+    --app-primary-bg: #172554; --app-error: #ef4444; --app-error-bg: #450a0a; --app-success: #22c55e;
+    --frame: #2b303a; --frame-shadow: rgba(0,0,0,0.55);
+  }
+
+  body {
+    background: var(--page-bg);
+    color: var(--page-ink);
+    font-family: var(--serif);
+    font-size: 17px;
+    line-height: 1.6;
+    -webkit-font-smoothing: antialiased;
+  }
+
+  .d-wrap { max-width: 1180px; margin: 0 auto; padding: 64px 28px 96px; }
+
+  /* ---------- document typography ---------- */
+  .d-eyebrow {
+    font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em;
+    text-transform: uppercase; color: var(--page-ink-3); margin: 0 0 18px;
+  }
+  .d-title {
+    font-family: var(--sans); font-weight: 700; font-size: clamp(34px, 5vw, 52px);
+    line-height: 1.04; letter-spacing: -0.028em; margin: 0; text-wrap: balance;
+  }
+  .d-deck {
+    max-width: 62ch; margin: 22px 0 0; font-size: 19px; line-height: 1.62; color: var(--page-ink-2);
+  }
+  .d-deck strong { color: var(--page-ink); font-weight: 600; }
+
+  .d-section { margin-top: 84px; }
+  .d-h2 {
+    font-family: var(--sans); font-weight: 700; font-size: 25px; letter-spacing: -0.018em;
+    margin: 0; text-wrap: balance;
+  }
+  .d-lede { max-width: 62ch; margin: 12px 0 0; color: var(--page-ink-2); }
+  .d-rule { height: 1px; background: var(--page-rule); border: 0; margin: 26px 0 34px; }
+
+  .d-meta {
+    display: flex; flex-wrap: wrap; gap: 8px 10px; margin-top: 30px;
+    font-family: var(--mono); font-size: 11.5px; color: var(--page-ink-2);
+  }
+  .d-meta span {
+    border: 1px solid var(--page-rule); border-radius: 999px; padding: 4px 11px; background: var(--page-panel);
+  }
+
+  /* ---------- comparison ---------- */
+  .d-compare {
+    display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 1px;
+    background: var(--page-rule); border: 1px solid var(--page-rule); border-radius: 12px; overflow: hidden;
+  }
+  .d-cell { background: var(--page-bg); padding: 20px 22px; }
+  .d-cell dt {
+    font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase;
+    color: var(--page-ink-3); margin: 0 0 10px;
+  }
+  .d-cell dd { margin: 0; font-family: var(--sans); font-size: 15px; line-height: 1.45; }
+  .d-was { color: var(--page-ink-3); text-decoration: line-through; text-decoration-thickness: 1px; }
+  .d-now { color: var(--page-ink); font-weight: 600; display: block; margin-top: 3px; }
+
+  /* ---------- filmstrip ---------- */
+  .d-strip {
+    display: flex; gap: 30px; overflow-x: auto; padding: 30px 26px 26px;
+    background: var(--page-panel); border-radius: 16px; scroll-snap-type: x proximity;
+  }
+  .d-strip figure { margin: 0; scroll-snap-align: center; flex: 0 0 auto; width: 288px; }
+  .d-strip figcaption { margin-top: 18px; }
+  .d-step {
+    font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase;
+    color: var(--accent); display: block; margin-bottom: 5px;
+  }
+  .d-step.is-alt { color: var(--page-ink-3); }
+  .d-cap-title { font-family: var(--sans); font-weight: 650; font-size: 15.5px; letter-spacing: -0.01em; }
+  .d-cap-body { font-size: 14.5px; line-height: 1.5; color: var(--page-ink-2); margin: 5px 0 0; }
+
+  /* ---------- notes ---------- */
+  .d-notes { list-style: none; padding: 0; margin: 0; display: grid; gap: 22px; max-width: 74ch; }
+  .d-notes li { display: grid; grid-template-columns: 26px 1fr; gap: 14px; align-items: start; }
+  .d-notes svg { width: 18px; height: 18px; color: var(--accent); margin-top: 4px; }
+  .d-note-h { font-family: var(--sans); font-weight: 650; font-size: 15.5px; }
+  .d-note-b { color: var(--page-ink-2); font-size: 16px; }
+  code {
+    font-family: var(--mono); font-size: 0.85em; background: var(--accent-soft);
+    color: var(--accent); padding: 1.5px 5px; border-radius: 4px;
+  }
+
+  .d-foot {
+    margin-top: 80px; padding-top: 22px; border-top: 1px solid var(--page-rule);
+    font-family: var(--mono); font-size: 11.5px; color: var(--page-ink-3);
+  }
+
+  /* ================= phone chrome ================= */
+  .p {
+    width: 288px; height: 600px; border-radius: 36px; background: var(--frame);
+    padding: 8px; box-shadow: 0 18px 44px -18px var(--frame-shadow); position: relative;
+  }
+  .p-screen {
+    width: 100%; height: 100%; border-radius: 29px; background: var(--app-bg); overflow: hidden;
+    position: relative; font-family: var(--sans); color: var(--app-text); font-size: 14px; line-height: 1.4;
+    display: flex; flex-direction: column;
+  }
+  .p-notch {
+    position: absolute; top: 15px; left: 50%; transform: translateX(-50%); width: 74px; height: 5px;
+    border-radius: 99px; background: var(--app-border); z-index: 6;
+  }
+  .p-pad { padding: 42px 24px 22px; flex: 1; display: flex; flex-direction: column; }
+  .p-pad.is-centered { justify-content: center; }
+
+  /* ---- in-app primitives ---- */
+  .s-logo {
+    width: 56px; height: 56px; border-radius: 17px; background: var(--app-primary);
+    display: grid; place-items: center; margin: 0 auto 16px; color: #fff;
+  }
+  .s-logo svg { width: 30px; height: 30px; }
+  .s-brand { text-align: center; margin-bottom: 30px; }
+  .s-brand h1 { font-size: 22px; font-weight: 700; letter-spacing: -0.02em; margin: 0; }
+  .s-brand p { font-size: 12.5px; color: var(--app-muted); margin: 5px 0 0; }
+
+  .s-h { font-size: 21px; font-weight: 700; letter-spacing: -0.022em; margin: 0; line-height: 1.22; }
+  .s-sub { font-size: 13px; color: var(--app-text-2); margin: 8px 0 0; line-height: 1.45; }
+
+  .s-tile {
+    display: flex; align-items: center; gap: 13px; width: 100%; text-align: left;
+    border: 1px solid var(--app-border); background: var(--app-surface);
+    border-radius: 14px; padding: 14px 15px; color: inherit;
+  }
+  .s-tile.is-primary { background: var(--app-primary); border-color: var(--app-primary); color: #fff; }
+  .s-tile-ico { width: 22px; height: 22px; flex: 0 0 22px; opacity: 0.95; }
+  .s-tile-txt { flex: 1; min-width: 0; }
+  .s-tile-t { font-size: 14.5px; font-weight: 600; letter-spacing: -0.005em; }
+  .s-tile-d { font-size: 11.5px; opacity: 0.72; margin-top: 2px; }
+  .s-tile-chev { width: 16px; height: 16px; opacity: 0.5; }
+
+  .s-stack { display: flex; flex-direction: column; gap: 10px; }
+
+  .s-field { margin-top: 20px; }
+  .s-label { font-size: 12px; font-weight: 600; color: var(--app-text-2); margin-bottom: 7px; }
+  .s-input {
+    border: 1px solid var(--app-border); background: var(--app-bg); border-radius: 10px;
+    height: 42px; padding: 0 13px; display: flex; align-items: center; gap: 8px; font-size: 14px;
+  }
+  .s-input.is-focus { border-color: var(--app-primary); box-shadow: 0 0 0 3px var(--app-primary-bg); }
+  .s-input.is-error { border-color: var(--app-error); }
+  .s-input .s-ph { color: var(--app-muted); }
+  .s-input svg { width: 17px; height: 17px; color: var(--app-muted); flex: 0 0 17px; }
+  .s-caret {
+    width: 1.5px; height: 17px; background: var(--app-primary); display: inline-block;
+    animation: blink 1.05s steps(1) infinite;
+  }
+  @keyframes blink { 50% { opacity: 0; } }
+  @media (prefers-reduced-motion: reduce) { .s-caret { animation: none; } }
+
+  .s-hint { font-size: 11.5px; color: var(--app-muted); margin-top: 8px; line-height: 1.45; }
+  .s-hint.is-error { color: var(--app-error); }
+
+  .s-btn {
+    height: 46px; border-radius: 12px; background: var(--app-primary); color: #fff;
+    display: grid; place-items: center; font-size: 15px; font-weight: 600; margin-top: 20px;
+  }
+  .s-btn.is-off { background: var(--app-surface-2); color: var(--app-muted); }
+  .s-btn.is-quiet {
+    background: transparent; color: var(--app-text); border: 1px solid var(--app-border); font-weight: 500;
+  }
+  .s-link { text-align: center; font-size: 13px; color: var(--app-primary); margin-top: 16px; font-weight: 500; }
+  .s-link.is-muted { color: var(--app-muted); font-weight: 400; }
+
+  .s-back { width: 22px; height: 22px; color: var(--app-text-2); margin-bottom: 22px; }
+  .s-foot {
+    text-align: center; font-size: 11px; color: var(--app-muted); padding: 0 0 8px; line-height: 1.6;
+  }
+
+  .s-card {
+    border: 1px solid var(--app-border); background: var(--app-surface); border-radius: 14px;
+    padding: 15px; display: flex; align-items: center; gap: 12px; margin-top: 22px;
+  }
+  .s-card-ico {
+    width: 38px; height: 38px; border-radius: 11px; background: var(--app-primary-bg);
+    color: var(--app-primary); display: grid; place-items: center; flex: 0 0 38px;
+  }
+  .s-card-ico svg { width: 19px; height: 19px; }
+  .s-card-t { font-size: 14.5px; font-weight: 600; }
+  .s-card-d { font-size: 11.5px; color: var(--app-text-2); margin-top: 2px; display: flex; align-items: center; gap: 5px; }
+  .s-dot { width: 5px; height: 5px; border-radius: 99px; background: var(--app-success); display: inline-block; }
+
+  .s-note {
+    display: flex; gap: 9px; align-items: flex-start; margin-top: 16px;
+    font-size: 11.5px; color: var(--app-text-2); line-height: 1.5;
+  }
+  .s-note svg { width: 15px; height: 15px; flex: 0 0 15px; margin-top: 1px; color: var(--app-muted); }
+
+  .s-banner {
+    display: flex; gap: 9px; align-items: flex-start; border-radius: 11px; padding: 11px 12px;
+    background: var(--app-error-bg); font-size: 12px; line-height: 1.45; margin-top: 18px;
+  }
+  .s-banner svg { width: 15px; height: 15px; flex: 0 0 15px; margin-top: 1px; color: var(--app-error); }
+
+  .s-divider { display: flex; align-items: center; gap: 12px; margin: 18px 0; }
+  .s-divider::before, .s-divider::after { content: ""; height: 1px; flex: 1; background: var(--app-border); }
+  .s-divider span { font-size: 11.5px; color: var(--app-muted); }
+
+  /* progress rows (setting up) */
+  .s-prog { display: flex; align-items: center; gap: 11px; padding: 11px 0; font-size: 13.5px; }
+  .s-prog .s-tick {
+    width: 20px; height: 20px; border-radius: 99px; background: var(--app-success);
+    color: #fff; display: grid; place-items: center; flex: 0 0 20px;
+  }
+  .s-prog .s-tick svg { width: 11px; height: 11px; }
+  .s-prog .s-spin {
+    width: 20px; height: 20px; border-radius: 99px; flex: 0 0 20px;
+    border: 2px solid var(--app-border); border-top-color: var(--app-primary); animation: spin 0.9s linear infinite;
+  }
+  @keyframes spin { to { transform: rotate(360deg); } }
+  @media (prefers-reduced-motion: reduce) { .s-prog .s-spin { animation: none; } }
+  .s-prog.is-pending { color: var(--app-muted); }
+
+  /* account rows (add mode) */
+  .s-acct { display: flex; align-items: center; gap: 11px; padding: 11px 0; }
+  .s-av {
+    width: 34px; height: 34px; border-radius: 99px; display: grid; place-items: center;
+    font-size: 13px; font-weight: 600; color: #fff; flex: 0 0 34px;
+  }
+  .s-acct-t { font-size: 14px; font-weight: 550; }
+  .s-acct-d { font-size: 11.5px; color: var(--app-muted); }
+
+  /* scanner — deliberately always dark, it's a camera view */
+  .p-screen.is-camera { background: #0b0d10; color: #fff; }
+  .s-cam { position: absolute; inset: 0; background:
+      radial-gradient(120% 80% at 50% 30%, #2a3038 0%, #14171c 55%, #0b0d10 100%); }
+  .s-cam-grid { position: absolute; inset: 0; opacity: 0.18; background-image:
+      linear-gradient(rgba(255,255,255,0.5) 1px, transparent 1px),
+      linear-gradient(90deg, rgba(255,255,255,0.5) 1px, transparent 1px); background-size: 34px 34px; }
+  .s-reticle { position: absolute; top: 168px; left: 50%; transform: translateX(-50%); width: 176px; height: 176px; }
+  .s-reticle i {
+    position: absolute; width: 34px; height: 34px; border: 3px solid #fff; border-radius: 4px;
+  }
+  .s-reticle i:nth-child(1) { top: 0; left: 0; border-right: 0; border-bottom: 0; }
+  .s-reticle i:nth-child(2) { top: 0; right: 0; border-left: 0; border-bottom: 0; }
+  .s-reticle i:nth-child(3) { bottom: 0; left: 0; border-right: 0; border-top: 0; }
+  .s-reticle i:nth-child(4) { bottom: 0; right: 0; border-left: 0; border-top: 0; }
+  .s-qr {
+    position: absolute; inset: 22px; border-radius: 6px; background: #fff;
+    display: grid; grid-template-columns: repeat(9, 1fr); grid-template-rows: repeat(9, 1fr); padding: 8px; gap: 2px;
+  }
+  .s-qr b { background: #0b0d10; border-radius: 1px; }
+  .s-cam-top {
+    position: absolute; top: 40px; left: 0; right: 0; display: flex; align-items: center;
+    justify-content: space-between; padding: 0 20px; z-index: 3;
+  }
+  .s-cam-top svg { width: 22px; height: 22px; color: #fff; }
+  .s-cam-copy { position: absolute; left: 0; right: 0; bottom: 46px; text-align: center; padding: 0 30px; z-index: 3; }
+  .s-cam-copy p { margin: 0; font-size: 13px; line-height: 1.5; color: rgba(255,255,255,0.82); }
+  .s-cam-copy .s-cam-h { font-size: 15.5px; font-weight: 600; color: #fff; margin-bottom: 6px; }
+  .s-cam-copy .s-cam-link { margin-top: 18px; font-size: 13px; font-weight: 500; color: #8ab4ff; }
+
+  /* browser handoff sheet */
+  .s-sheet {
+    position: absolute; inset: 26px 0 0; background: var(--app-bg); border-radius: 18px 18px 0 0;
+    box-shadow: 0 -8px 40px rgba(0,0,0,0.35); display: flex; flex-direction: column; overflow: hidden;
+  }
+  .s-sheet-bar {
+    display: flex; align-items: center; gap: 9px; padding: 13px 15px;
+    border-bottom: 1px solid var(--app-border); font-size: 12.5px; color: var(--app-text-2);
+  }
+  .s-sheet-bar svg { width: 13px; height: 13px; color: var(--app-success); }
+  .s-sheet-bar .s-url { flex: 1; color: var(--app-text); font-weight: 550; }
+  .s-sheet-bar .s-done { color: var(--app-primary); font-weight: 600; }
+  .s-sheet-body { padding: 30px 24px; flex: 1; }
+  .s-scrim { position: absolute; inset: 0; background: rgba(4,6,10,0.5); }
+  .s-web-brand { display: flex; align-items: center; gap: 9px; margin-bottom: 24px; }
+  .s-web-brand .s-web-mark {
+    width: 28px; height: 28px; border-radius: 9px; background: var(--app-primary);
+    color: #fff; display: grid; place-items: center;
+  }
+  .s-web-brand .s-web-mark svg { width: 16px; height: 16px; }
+  .s-web-brand b { font-size: 14.5px; letter-spacing: -0.01em; }
+
+  /* the "before" screen is intentionally cramped */
+  .s-old-field { margin-bottom: 13px; }
+</style>
+
+<div class="d-wrap">
+
+  <p class="d-eyebrow">Bulwark Mobile · sign-in redesign</p>
+  <h1 class="d-title">Three fields nobody knows the answer&nbsp;to</h1>
+  <p class="d-deck">
+    The current sign-in screen opens with a <strong>Server URL</strong> field. Most people don't know their
+    JMAP endpoint, and the two paths that don't require knowing it — the webmail handoff and the QR code — sit
+    below a divider, greyed out until the URL is filled in anyway. This proposes an entry screen that leads with
+    the easy paths and asks for a server only when we genuinely can't work it out.
+  </p>
+
+  <div class="d-meta">
+    <span>src/screens/LoginScreen.tsx</span>
+    <span>expo · react-native</span>
+    <span>light + dark, both shown</span>
+  </div>
+
+  <section class="d-section">
+    <h2 class="d-h2">What changes</h2>
+    <hr class="d-rule" />
+    <dl class="d-compare">
+      <div class="d-cell">
+        <dt>To reach the inbox</dt>
+        <dd><span class="d-was">3 fields typed</span><span class="d-now">1 field, or none with a code</span></dd>
+      </div>
+      <div class="d-cell">
+        <dt>Server URL</dt>
+        <dd><span class="d-was">Asked first, always</span><span class="d-now">Looked up from the address</span></dd>
+      </div>
+      <div class="d-cell">
+        <dt>Password in the app</dt>
+        <dd><span class="d-was">Default path</span><span class="d-now">Fallback only</span></dd>
+      </div>
+      <div class="d-cell">
+        <dt>QR sign-in</dt>
+        <dd><span class="d-was">Ghost button, disabled</span><span class="d-now">First option offered</span></dd>
+      </div>
+    </dl>
+  </section>
+
+  <section class="d-section">
+    <h2 class="d-h2">Today</h2>
+    <p class="d-lede">
+      Everything at once, in the least helpful order. The webmail handoff is the safer route — it never puts a
+      password into the app — but it's disabled until you've supplied the server, so it can't rescue anyone who's stuck.
+    </p>
+    <hr class="d-rule" />
+
+    <div class="d-strip">
+      <figure>
+        <div class="p">
+          <div class="p-notch"></div>
+          <div class="p-screen">
+            <div class="p-pad is-centered">
+              <div class="s-brand">
+                <div class="s-logo"><svg><use href="#i-shield" /></svg></div>
+                <h1>Bulwark Mail</h1>
+                <p>Secure. Private. Yours.</p>
+              </div>
+
+              <div class="s-old-field">
+                <div class="s-label">Server URL</div>
+                <div class="s-input"><span class="s-ph">https://mail.example.com</span></div>
+              </div>
+              <div class="s-old-field">
+                <div class="s-label">Email or Username</div>
+                <div class="s-input"><span class="s-ph">you@example.com</span></div>
+              </div>
+              <div class="s-old-field">
+                <div class="s-label">Password</div>
+                <div class="s-input">
+                  <span class="s-ph" style="flex:1">Enter your password</span>
+                  <svg><use href="#i-eye" /></svg>
+                </div>
+              </div>
+
+              <div class="s-btn is-off" style="margin-top:12px">Sign In</div>
+
+              <div class="s-divider"><span>or continue with</span></div>
+              <div class="s-stack">
+                <div class="s-btn is-quiet" style="margin-top:0;opacity:0.45">Sign in via webmail</div>
+                <div class="s-link is-muted" style="margin-top:2px;opacity:0.45">Scan QR code</div>
+              </div>
+            </div>
+            <div class="s-foot">Bulwark Mobile v1.4.0<br /><span style="color:var(--app-primary)">Privacy Policy</span></div>
+          </div>
+        </div>
+        <figcaption>
+          <span class="d-step is-alt">Current build</span>
+          <span class="d-cap-title">One screen, six controls</span>
+          <p class="d-cap-body">
+            The two disabled controls at the bottom are the ones that would have helped. Nothing tells you where
+            to find a server URL, and nothing happens if you don't have one.
+          </p>
+        </figcaption>
+      </figure>
+    </div>
+  </section>
+
+  <section class="d-section">
+    <h2 class="d-h2">Proposed flow</h2>
+    <p class="d-lede">
+      One question per screen, cheapest question first. The screens below are the happy path, left to right.
+    </p>
+    <hr class="d-rule" />
+
+    <div class="d-strip">
+
+      <!-- 1 · welcome -->
+      <figure>
+        <div class="p">
+          <div class="p-notch"></div>
+          <div class="p-screen">
+            <div class="p-pad is-centered">
+              <div class="s-brand">
+                <div class="s-logo"><svg><use href="#i-shield" /></svg></div>
+                <h1>Bulwark Mail</h1>
+                <p>Secure. Private. Yours.</p>
+              </div>
+
+              <div class="s-stack">
+                <div class="s-tile is-primary">
+                  <svg class="s-tile-ico"><use href="#i-qr" /></svg>
+                  <span class="s-tile-txt">
+                    <span class="s-tile-t">Scan a sign-in code</span>
+                    <span class="s-tile-d">Already signed in on the web? Fastest way in.</span>
+                  </span>
+                  <svg class="s-tile-chev"><use href="#i-chev" /></svg>
+                </div>
+                <div class="s-tile">
+                  <svg class="s-tile-ico"><use href="#i-mail" /></svg>
+                  <span class="s-tile-txt">
+                    <span class="s-tile-t">Use my email address</span>
+                    <span class="s-tile-d">We'll find your mail server</span>
+                  </span>
+                  <svg class="s-tile-chev"><use href="#i-chev" /></svg>
+                </div>
+              </div>
+
+              <div class="s-link is-muted">Enter server details manually</div>
+            </div>
+            <div class="s-foot">Bulwark Mobile v1.4.0<br /><span style="color:var(--app-primary)">Privacy Policy</span></div>
+          </div>
+        </div>
+        <figcaption>
+          <span class="d-step">Step 1</span>
+          <span class="d-cap-title">Pick a way in</span>
+          <p class="d-cap-body">
+            Two live options instead of six mixed ones. Each tile says what it costs you before you tap it.
+            Manual setup stays reachable in one tap — it just isn't the greeting.
+          </p>
+        </figcaption>
+      </figure>
+
+      <!-- 2 · email -->
+      <figure>
+        <div class="p">
+          <div class="p-notch"></div>
+          <div class="p-screen">
+            <div class="p-pad">
+              <svg class="s-back"><use href="#i-back" /></svg>
+              <h2 class="s-h">What's your email address?</h2>
+              <p class="s-sub">That's usually all we need — we'll look up the mail server for you.</p>
+
+              <div class="s-field">
+                <div class="s-input is-focus">
+                  <svg><use href="#i-mail" /></svg>
+                  <span>ada@example.com</span><span class="s-caret"></span>
+                </div>
+                <p class="s-hint">Works with Bulwark, Stalwart, and any JMAP mail server.</p>
+              </div>
+
+              <div class="s-btn">Continue</div>
+              <div style="flex:1"></div>
+              <div class="s-link is-muted">I know my server address</div>
+            </div>
+          </div>
+        </div>
+        <figcaption>
+          <span class="d-step">Step 2</span>
+          <span class="d-cap-title">One field, keyboard already up</span>
+          <p class="d-cap-body">
+            Autofocus with the email keyboard, autocorrect off. The button stays enabled and validates on tap,
+            so nobody is left staring at a dead grey button wondering which field is wrong.
+          </p>
+        </figcaption>
+      </figure>
+
+      <!-- 3 · found server -->
+      <figure>
+        <div class="p">
+          <div class="p-notch"></div>
+          <div class="p-screen">
+            <div class="p-pad">
+              <svg class="s-back"><use href="#i-back" /></svg>
+              <h2 class="s-h">Found your mail server</h2>
+              <p class="s-sub">Next you'll sign in on your provider's own page.</p>
+
+              <div class="s-card">
+                <span class="s-card-ico"><svg><use href="#i-globe" /></svg></span>
+                <span>
+                  <span class="s-card-t">mail.example.com</span>
+                  <span class="s-card-d"><i class="s-dot"></i> JMAP · secure connection</span>
+                </span>
+              </div>
+
+              <div class="s-note">
+                <svg><use href="#i-lock" /></svg>
+                <span>Your password is typed on your provider's page, never into this app. Bulwark stores a token it can revoke.</span>
+              </div>
+
+              <div class="s-btn">Continue</div>
+              <div class="s-link">Use a different server</div>
+            </div>
+          </div>
+        </div>
+        <figcaption>
+          <span class="d-step">Step 3</span>
+          <span class="d-cap-title">Confirm before the browser opens</span>
+          <p class="d-cap-body">
+            A browser jump with no warning feels like a bug. Naming the server first — and saying why the
+            password isn't asked for here — turns the detour into a security feature.
+          </p>
+        </figcaption>
+      </figure>
+
+      <!-- 4 · handoff -->
+      <figure>
+        <div class="p">
+          <div class="p-notch"></div>
+          <div class="p-screen">
+            <div class="p-pad is-centered" style="opacity:0.5">
+              <div class="s-brand">
+                <div class="s-logo"><svg><use href="#i-shield" /></svg></div>
+                <h1>Bulwark Mail</h1>
+              </div>
+            </div>
+            <div class="s-scrim"></div>
+            <div class="s-sheet">
+              <div class="s-sheet-bar">
+                <svg><use href="#i-lock" /></svg>
+                <span class="s-url">mail.example.com</span>
+                <span class="s-done">Done</span>
+              </div>
+              <div class="s-sheet-body">
+                <div class="s-web-brand">
+                  <span class="s-web-mark"><svg><use href="#i-shield" /></svg></span>
+                  <b>Sign in to Bulwark</b>
+                </div>
+                <div class="s-label">Email</div>
+                <div class="s-input"><span>ada@example.com</span></div>
+                <div class="s-label" style="margin-top:14px">Password</div>
+                <div class="s-input is-focus">
+                  <span style="flex:1">••••••••••</span><svg><use href="#i-eye" /></svg>
+                </div>
+                <div class="s-btn">Sign in</div>
+                <div class="s-divider"><span>or</span></div>
+                <div class="s-tile" style="padding:11px 13px">
+                  <svg class="s-tile-ico"><use href="#i-key" /></svg>
+                  <span class="s-tile-txt"><span class="s-tile-t">Continue with passkey</span></span>
+                </div>
+              </div>
+            </div>
+          </div>
+        </div>
+        <figcaption>
+          <span class="d-step">Step 4</span>
+          <span class="d-cap-title">The provider's page, in a sheet</span>
+          <p class="d-cap-body">
+            This is the existing <code>runWebmailHandoff</code> flow, unchanged. It already supports whatever
+            the server offers — password, OAuth, passkeys, SSO — which the in-app form never will.
+          </p>
+        </figcaption>
+      </figure>
+
+      <!-- 5 · setting up -->
+      <figure>
+        <div class="p">
+          <div class="p-notch"></div>
+          <div class="p-screen">
+            <div class="p-pad is-centered">
+              <div style="text-align:center;margin-bottom:26px">
+                <span class="s-av" style="width:60px;height:60px;font-size:22px;background:var(--app-primary);margin:0 auto 14px">AL</span>
+                <h2 class="s-h" style="font-size:20px">Welcome back, Ada</h2>
+                <p class="s-sub">ada@example.com</p>
+              </div>
+
+              <div>
+                <div class="s-prog">
+                  <span class="s-tick"><svg><use href="#i-check" /></svg></span> Mailboxes
+                </div>
+                <div class="s-prog">
+                  <span class="s-tick"><svg><use href="#i-check" /></svg></span> Recent mail
+                </div>
+                <div class="s-prog is-pending">
+                  <span class="s-spin"></span> Contacts and calendars
+                </div>
+              </div>
+            </div>
+          </div>
+        </div>
+        <figcaption>
+          <span class="d-step">Step 5</span>
+          <span class="d-cap-title">Land on progress, not a spinner</span>
+          <p class="d-cap-body">
+            The first sync is the slowest moment in the app. Naming what's arriving makes the wait legible, and
+            the inbox opens as soon as mailboxes land — the rest fills in behind it.
+          </p>
+        </figcaption>
+      </figure>
+
+    </div>
+  </section>
+
+  <section class="d-section">
+    <h2 class="d-h2">When it doesn't go smoothly</h2>
+    <p class="d-lede">
+      Self-hosted servers, typo'd passwords, and second accounts are the normal case for this audience, not the
+      exception. These four screens carry most of the redesign's weight.
+    </p>
+    <hr class="d-rule" />
+
+    <div class="d-strip">
+
+      <!-- scanner -->
+      <figure>
+        <div class="p">
+          <div class="p-notch"></div>
+          <div class="p-screen is-camera">
+            <div class="s-cam"><div class="s-cam-grid"></div></div>
+            <div class="s-cam-top">
+              <svg><use href="#i-x" /></svg>
+              <span style="font-size:12.5px;opacity:0.8">Sign-in code</span>
+              <span style="width:22px"></span>
+            </div>
+            <div class="s-reticle">
+              <i></i><i></i><i></i><i></i>
+              <div class="s-qr">
+                <b></b><b></b><b></b><b style="background:transparent"></b><b></b><b style="background:transparent"></b><b></b><b></b><b></b>
+                <b></b><b style="background:transparent"></b><b></b><b></b><b style="background:transparent"></b><b></b><b></b><b style="background:transparent"></b><b></b>
+                <b></b><b></b><b></b><b style="background:transparent"></b><b></b><b></b><b></b><b></b><b></b>
+                <b style="background:transparent"></b><b></b><b style="background:transparent"></b><b></b><b></b><b style="background:transparent"></b><b></b><b style="background:transparent"></b><b></b>
+                <b></b><b></b><b></b><b></b><b style="background:transparent"></b><b></b><b></b><b></b><b style="background:transparent"></b>
+                <b></b><b style="background:transparent"></b><b></b><b style="background:transparent"></b><b></b><b></b><b style="background:transparent"></b><b></b><b></b>
+                <b></b><b></b><b></b><b></b><b></b><b style="background:transparent"></b><b></b><b></b><b></b>
+                <b></b><b style="background:transparent"></b><b></b><b style="background:transparent"></b><b></b><b></b><b></b><b style="background:transparent"></b><b></b>
+                <b></b><b></b><b></b><b></b><b style="background:transparent"></b><b></b><b></b><b></b><b></b>
+              </div>
+            </div>
+            <div class="s-cam-copy">
+              <p class="s-cam-h">Open Bulwark on your computer</p>
+              <p>Settings → Devices → Add phone shows a code. Point the camera at it.</p>
+              <p class="s-cam-link">Type the code instead</p>
+            </div>
+          </div>
+        </div>
+        <figcaption>
+          <span class="d-step">Path A</span>
+          <span class="d-cap-title">The scanner tells you where the code is</span>
+          <p class="d-cap-body">
+            A scanner with no instructions is a dead end for anyone who hasn't seen the webmail's Devices page.
+            Redeeming a paired code skips the browser entirely — see <code>redeemPairingCode</code>.
+          </p>
+        </figcaption>
+      </figure>
+
+      <!-- discovery failed -->
+      <figure>
+        <div class="p">
+          <div class="p-notch"></div>
+          <div class="p-screen">
+            <div class="p-pad">
+              <svg class="s-back"><use href="#i-back" /></svg>
+              <h2 class="s-h">Where does your mail live?</h2>
+              <p class="s-sub">We couldn't find a server for <b>example.org</b>. If you self-host, the address is the one you use for webmail.</p>
+
+              <div class="s-field">
+                <div class="s-label">Server address</div>
+                <div class="s-input is-focus">
+                  <svg><use href="#i-globe" /></svg>
+                  <span>mail.example.org</span><span class="s-caret"></span>
+                </div>
+                <p class="s-hint">Same address you type in the browser. We'll add <b>https://</b>.</p>
+              </div>
+
+              <div class="s-btn">Continue</div>
+              <div style="flex:1"></div>
+              <div class="s-note">
+                <svg><use href="#i-qr" /></svg>
+                <span>Not sure? Scan a sign-in code from the webmail instead — it carries the address with it.</span>
+              </div>
+            </div>
+          </div>
+        </div>
+        <figcaption>
+          <span class="d-step is-alt">Path B</span>
+          <span class="d-cap-title">Ask for the server people know</span>
+          <p class="d-cap-body">
+            Not the JMAP session URL — the webmail address they type every day. The scheme is added for them, and
+            a trailing slash or full <code>/jmap</code> path is accepted and trimmed.
+          </p>
+        </figcaption>
+      </figure>
+
+      <!-- password fallback + error -->
+      <figure>
+        <div class="p">
+          <div class="p-notch"></div>
+          <div class="p-screen">
+            <div class="p-pad">
+              <svg class="s-back"><use href="#i-back" /></svg>
+              <h2 class="s-h">Sign in to mail.example.org</h2>
+              <p class="s-sub">This server doesn't support the browser sign-in, so we'll ask here.</p>
+
+              <div class="s-field" style="margin-top:18px">
+                <div class="s-label">Email or username</div>
+                <div class="s-input"><span>ada@example.org</span></div>
+              </div>
+
+              <div class="s-field" style="margin-top:14px">
+                <div class="s-label">Password</div>
+                <div class="s-input is-error">
+                  <span style="flex:1">••••••••</span><svg><use href="#i-eye" /></svg>
+                </div>
+              </div>
+
+              <div class="s-banner">
+                <svg><use href="#i-alert" /></svg>
+                <span><b>That password didn't work.</b> If your account has two-factor sign-in, you'll need an app password from the webmail.</span>
+              </div>
+
+              <div class="s-btn">Sign in</div>
+            </div>
+          </div>
+        </div>
+        <figcaption>
+          <span class="d-step is-alt">Path C</span>
+          <span class="d-cap-title">Errors that name the likely cause</span>
+          <p class="d-cap-body">
+            The store's raw error string is replaced with mapped copy per failure: wrong credentials, unreachable
+            host, bad certificate, 2FA-needs-an-app-password. Each says what to do next.
+          </p>
+        </figcaption>
+      </figure>
+
+      <!-- add account -->
+      <figure>
+        <div class="p">
+          <div class="p-notch"></div>
+          <div class="p-screen">
+            <div class="p-pad">
+              <div style="display:flex;justify-content:flex-end"><svg class="s-back" style="margin-bottom:14px"><use href="#i-x" /></svg></div>
+              <h2 class="s-h">Add another account</h2>
+              <p class="s-sub">You're signed in to these already.</p>
+
+              <div style="margin-top:16px">
+                <div class="s-acct">
+                  <span class="s-av" style="background:#3b82f6">AL</span>
+                  <span><span class="s-acct-t">Ada Lovelace</span><span class="s-acct-d">ada@example.com</span></span>
+                </div>
+                <div class="s-acct">
+                  <span class="s-av" style="background:#a855f7">AL</span>
+                  <span><span class="s-acct-t">Work</span><span class="s-acct-d">a.lovelace@analytical.co</span></span>
+                </div>
+              </div>
+
+              <div class="s-divider"><span>add</span></div>
+
+              <div class="s-stack">
+                <div class="s-tile">
+                  <svg class="s-tile-ico"><use href="#i-plus" /></svg>
+                  <span class="s-tile-txt">
+                    <span class="s-tile-t">Another account on example.com</span>
+                    <span class="s-tile-d">Server already known</span>
+                  </span>
+                  <svg class="s-tile-chev"><use href="#i-chev" /></svg>
+                </div>
+                <div class="s-tile">
+                  <svg class="s-tile-ico"><use href="#i-mail" /></svg>
+                  <span class="s-tile-txt"><span class="s-tile-t">A different provider</span></span>
+                  <svg class="s-tile-chev"><use href="#i-chev" /></svg>
+                </div>
+              </div>
+            </div>
+          </div>
+        </div>
+        <figcaption>
+          <span class="d-step is-alt">Add mode</span>
+          <span class="d-cap-title">Reuse what we already know</span>
+          <p class="d-cap-body">
+            <code>isAddMode</code> currently shows the same blank three-field form. Most second accounts live on
+            the same server as the first, so offer that first and skip discovery entirely.
+          </p>
+        </figcaption>
+      </figure>
+
+    </div>
+  </section>
+
+  <section class="d-section">
+    <h2 class="d-h2">Notes for the build</h2>
+    <hr class="d-rule" />
+    <ul class="d-notes">
+      <li>
+        <svg><use href="#i-globe" /></svg>
+        <div>
+          <div class="d-note-h">Discovery is three cheap probes, in order</div>
+          <p class="d-note-b">
+            From <code>ada@example.com</code>: try <code>https://example.com/.well-known/jmap</code>, then
+            <code>https://mail.example.com/.well-known/jmap</code>, then the same host the last account used.
+            First 200 wins. Budget the whole thing at two seconds and fall through to Path B on timeout — a
+            slow lookup must never be worse than the manual form.
+          </p>
+        </div>
+      </li>
+      <li>
+        <svg><use href="#i-shield" /></svg>
+        <div>
+          <div class="d-note-h">Nothing new on the wire</div>
+          <p class="d-note-b">
+            Every screen drives an existing store action — <code>loginViaWebmail</code>,
+            <code>loginViaPairing</code>, <code>login</code>. The redesign is routing and copy; the auth
+            surface, the state machine, and <code>parseQrLoginPayload</code> stay as they are.
+          </p>
+        </div>
+      </li>
+      <li>
+        <svg><use href="#i-alert" /></svg>
+        <div>
+          <div class="d-note-h">Back must always work</div>
+          <p class="d-note-b">
+            A multi-step flow earns a hardware-back handler on Android. Every step goes back one, and step 1
+            leaves the flow — never a trapped screen with a filled-in field you can't clear.
+          </p>
+        </div>
+      </li>
+      <li>
+        <svg><use href="#i-key" /></svg>
+        <div>
+          <div class="d-note-h">Let the OS help</div>
+          <p class="d-note-b">
+            <code>autoComplete="email"</code> and <code>textContentType="username"</code> on the address field,
+            <code>"password"</code> on the fallback field, so the platform password manager offers to fill and
+            save. The current screen sets neither.
+          </p>
+        </div>
+      </li>
+    </ul>
+  </section>
+
+  <p class="d-foot">Mockup · repos/react-native/mockups/login.html · static HTML, no interaction wired up</p>
+</div>

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "bulwark-mobile",
-  "version": "0.1.50",
+  "version": "0.1.56",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "bulwark-mobile",
-      "version": "0.1.50",
+      "version": "0.1.56",
       "license": "AGPL-3.0-only",
       "dependencies": {
         "@react-native-async-storage/async-storage": "2.2.0",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "bulwark-mobile",
-  "version": "0.1.50",
+  "version": "0.1.56",
   "license": "AGPL-3.0-only",
   "main": "index.ts",
   "scripts": {

src/api/__tests__/calendar.test.ts

@@ -87,7 +87,10 @@ describe('calendar operations', () => {
   });
 
   describe('getEvents', () => {
-    it('should fetch events by id with expected properties', async () => {
+    it('should fetch events by id with singular JSCalendar 2.0 recurrence properties', async () => {
+      // Stalwart (calcard) names the property `recurrenceRule` (singular,
+      // single object) — requesting the RFC 8984 plural form returns no
+      // recurrence data and repeating events vanish from the grid (#13).
       const events = [{ id: 'ev1', title: 'Meeting', start: '2026-03-29T10:00:00' }];
       mockRequest.mockResolvedValue({
         methodResponses: [['CalendarEvent/get', { list: events }, '0']],
@@ -99,7 +102,48 @@ describe('calendar operations', () => {
       const call = mockRequest.mock.calls[0][0][0];
       expect(call[1].properties).toContain('title');
       expect(call[1].properties).toContain('start');
-      expect(call[1].properties).toContain('recurrenceRules');
+      expect(call[1].properties).toContain('recurrenceRule');
+      expect(call[1].properties).toContain('excludedRecurrenceRule');
+      expect(call[1].properties).not.toContain('recurrenceRules');
+      expect(call[1].properties).not.toContain('excludedRecurrenceRules');
+    });
+
+    it('should normalize a singular recurrenceRule object to the plural array form', async () => {
+      const events = [{
+        id: 'ev1',
+        title: 'Every 5 weeks',
+        start: '2026-03-02T10:00:00',
+        recurrenceRule: { '@type': 'RecurrenceRule', frequency: 'weekly', interval: 5 },
+        excludedRecurrenceRule: { frequency: 'weekly', interval: 10 },
+      }];
+      mockRequest.mockResolvedValue({
+        methodResponses: [['CalendarEvent/get', { list: events }, '0']],
+      });
+
+      const [event] = await getEvents(['ev1']);
+      expect(event.recurrenceRules).toEqual([
+        { '@type': 'RecurrenceRule', frequency: 'weekly', interval: 5 },
+      ]);
+      expect(event.excludedRecurrenceRules).toEqual([
+        { frequency: 'weekly', interval: 10 },
+      ]);
+      expect(event).not.toHaveProperty('recurrenceRule');
+      expect(event).not.toHaveProperty('excludedRecurrenceRule');
+    });
+
+    it('should keep an array-valued recurrenceRule as-is (JMAP-created events)', async () => {
+      const events = [{
+        id: 'ev1',
+        title: 'Weekly',
+        start: '2026-03-02T10:00:00',
+        recurrenceRule: [{ frequency: 'weekly', interval: 2 }],
+      }];
+      mockRequest.mockResolvedValue({
+        methodResponses: [['CalendarEvent/get', { list: events }, '0']],
+      });
+
+      const [event] = await getEvents(['ev1']);
+      expect(event.recurrenceRules).toEqual([{ frequency: 'weekly', interval: 2 }]);
     });
   });
 
@@ -115,10 +159,39 @@ describe('calendar operations', () => {
         'cal-1',
       );
 
-      expect(result).toEqual(created);
+      // The /set response echoes only server-set properties; the return value
+      // merges them over the submitted payload.
+      expect(result).toEqual({
+        id: 'ev-new',
+        title: 'Lunch',
+        start: '2026-03-30T12:00:00',
+        duration: 'PT1H',
+        calendarIds: { 'cal-1': true },
+      });
       const call = mockRequest.mock.calls[0][0][0];
       expect(call[1].create['new-event'].calendarIds).toEqual({ 'cal-1': true });
     });
+
+    it('should send recurrence as a singular cleaned object', async () => {
+      mockRequest.mockResolvedValue({
+        methodResponses: [['CalendarEvent/set', { created: { 'new-event': { id: 'ev-new' } } }, '0']],
+      });
+
+      const result = await createEvent(
+        {
+          title: 'Series',
+          start: '2026-03-30T12:00:00',
+          recurrenceRules: [{ frequency: 'weekly', interval: 5, until: null as unknown as string }],
+        },
+        'cal-1',
+      );
+
+      const sent = mockRequest.mock.calls[0][0][0][1].create['new-event'];
+      expect(sent.recurrenceRule).toEqual({ frequency: 'weekly', interval: 5 });
+      expect(sent).not.toHaveProperty('recurrenceRules');
+      // The returned event exposes the internal plural form again.
+      expect(result.recurrenceRules).toEqual([{ frequency: 'weekly', interval: 5 }]);
+    });
   });
 
   describe('updateEvent', () => {
@@ -132,6 +205,23 @@ describe('calendar operations', () => {
       const call = mockRequest.mock.calls[0][0][0];
       expect(call[1].update).toEqual({ ev1: { title: 'Updated Meeting' } });
     });
+
+    it('should convert recurrenceRules updates to the singular property', async () => {
+      mockRequest.mockResolvedValue({
+        methodResponses: [['CalendarEvent/set', { updated: {} }, '0']],
+      });
+
+      await updateEvent('ev1', { recurrenceRules: [{ frequency: 'monthly' }] });
+      expect(mockRequest.mock.calls[0][0][0][1].update).toEqual({
+        ev1: { recurrenceRule: { frequency: 'monthly' } },
+      });
+
+      // Empty array means "remove recurrence" — sent as an explicit null.
+      await updateEvent('ev1', { recurrenceRules: [] });
+      expect(mockRequest.mock.calls[1][0][0][1].update).toEqual({
+        ev1: { recurrenceRule: null },
+      });
+    });
   });
 
   describe('deleteEvents', () => {

src/api/calendar.ts

@@ -37,18 +37,94 @@ function buildInCalendarFilter(calendarIds: string[]): Record<string, unknown> {
   };
 }
 
+// Stalwart's calcard crate implements JSCalendar 2.0 (jscalendarbis) property
+// names: singular `recurrenceRule` / `excludedRecurrenceRule` holding a single
+// object, not RFC 8984's plural array forms. Requesting the plural names
+// returns no recurrence data at all, so recurring events silently render as
+// one-off events (#13). Request the singular names and normalize below.
 const CALENDAR_EVENT_PROPERTIES = [
   'id', '@type', 'uid', 'calendarIds', 'title', 'description',
   'start', 'duration', 'timeZone', 'showWithoutTime',
   'utcStart', 'utcEnd', 'status', 'freeBusyStatus',
-  'participants', 'alerts', 'useDefaultAlerts', 'recurrenceRules',
-  'recurrenceOverrides', 'excludedRecurrenceRules',
+  'participants', 'alerts', 'useDefaultAlerts', 'recurrenceRule',
+  'recurrenceOverrides', 'excludedRecurrenceRule', 'recurrenceId',
   'replyTo', 'organizerCalendarAddress', 'sequence',
   'locations', 'virtualLocations',
   'progress', 'due', 'priority', 'percentComplete',
   'links', 'created', 'updated',
 ];
 
+/**
+ * Normalize Stalwart's singular recurrence property names to the RFC 8984
+ * plural array forms the client uses internally. JSCalendar 2.0 defines
+ * recurrenceRule as a single object, but Stalwart may also return an array
+ * (for events created via JMAP), so both forms are handled. Mirrors webmail's
+ * normalizeStalwartPropertyNames.
+ */
+export function normalizeRecurrenceProperties<T extends Partial<CalendarEvent>>(event: T): T {
+  const raw = event as Record<string, unknown>;
+  let patched = false;
+  const updates: Partial<CalendarEvent> = {};
+
+  if ('recurrenceRule' in raw && !('recurrenceRules' in raw)) {
+    const val = raw.recurrenceRule;
+    if (val != null && !Array.isArray(val) && typeof val === 'object') {
+      updates.recurrenceRules = [val] as CalendarEvent['recurrenceRules'];
+    } else {
+      updates.recurrenceRules = val as CalendarEvent['recurrenceRules'];
+    }
+    patched = true;
+  }
+  if ('excludedRecurrenceRule' in raw && !('excludedRecurrenceRules' in raw)) {
+    const val = raw.excludedRecurrenceRule;
+    if (val != null && !Array.isArray(val) && typeof val === 'object') {
+      updates.excludedRecurrenceRules = [val] as CalendarEvent['excludedRecurrenceRules'];
+    } else {
+      updates.excludedRecurrenceRules = val as CalendarEvent['excludedRecurrenceRules'];
+    }
+    patched = true;
+  }
+
+  if (!patched) return event;
+
+  const result = { ...event, ...updates } as T;
+  delete (result as Record<string, unknown>).recurrenceRule;
+  delete (result as Record<string, unknown>).excludedRecurrenceRule;
+  return result;
+}
+
+/**
+ * Convert the client's plural recurrence arrays to the singular JSCalendar 2.0
+ * properties Stalwart expects on write, dropping null rule fields. An empty
+ * array (or null) becomes an explicit null so "remove recurrence" round-trips.
+ * Mirrors webmail's cleanRecurrenceRules.
+ */
+function cleanRecurrenceRules(event: Record<string, unknown>): void {
+  const keyMap: Record<string, string> = {
+    recurrenceRules: 'recurrenceRule',
+    excludedRecurrenceRules: 'excludedRecurrenceRule',
+  };
+  for (const [pluralKey, singularKey] of Object.entries(keyMap)) {
+    const rules = event[pluralKey];
+    if (rules === undefined) continue;
+    delete event[pluralKey];
+    if (!Array.isArray(rules)) {
+      event[singularKey] = rules;
+      continue;
+    }
+    if (rules.length === 0) {
+      event[singularKey] = null;
+      continue;
+    }
+    const rule = rules[0] as Record<string, unknown>;
+    const cleaned: Record<string, unknown> = {};
+    for (const [k, v] of Object.entries(rule)) {
+      if (v !== null) cleaned[k] = v;
+    }
+    event[singularKey] = cleaned;
+  }
+}
+
 function methodResult<T = any>(res: any, index = 0): T {
   const entry = res?.methodResponses?.[index];
   if (!entry) throw new Error('JMAP: empty method response');
@@ -89,7 +165,18 @@ export async function getCalendars(): Promise<Calendar[]> {
           USING,
         );
         const list = methodResult<{ list: Calendar[] }>(sharedRes).list ?? [];
-        return list.map((cal) => ({ ...cal, accountId: sharedAccountId, isShared: true }));
+        // JMAP calendar ids are only unique within an account, so a shared
+        // "default" calendar collides with the user's own "default". Namespace
+        // the id (keeping the real id in originalId) so visibility toggles,
+        // event-query routing, and create/default mutations don't cross wires.
+        // Mirrors webmail's getAllCalendars.
+        return list.map((cal) => ({
+          ...cal,
+          id: `${sharedAccountId}:${cal.id}`,
+          originalId: cal.id,
+          accountId: sharedAccountId,
+          isShared: true,
+        }));
       } catch {
         return [];
       }
@@ -138,7 +225,7 @@ export async function getEvents(ids: string[], accountId?: string): Promise<Cale
       USING,
     );
     const list = methodResult<{ list: CalendarEvent[] }>(res).list ?? [];
-    all.push(...list);
+    all.push(...list.map(normalizeRecurrenceProperties));
   }
   return all;
 }
@@ -165,11 +252,11 @@ export async function createEvent(
   targetAccountId?: string,
 ): Promise<CalendarEvent> {
   const accountId = targetAccountId || jmapClient.accountId;
+  const payload: Record<string, unknown> = { ...event, calendarIds: { [calendarId]: true } };
+  cleanRecurrenceRules(payload);
   const res = await jmapClient.request(
     [['CalendarEvent/set', setArgs(accountId, {
-      create: {
-        'new-event': { ...event, calendarIds: { [calendarId]: true } },
-      },
+      create: { 'new-event': payload },
     }, sendSchedulingMessages), '0']],
     USING,
   );
@@ -182,19 +269,24 @@ export async function createEvent(
     const err = result.notCreated?.['new-event'];
     throw new Error(err?.description || err?.type || 'Failed to create event');
   }
-  return created;
+  // The /set response echoes only server-set properties; merge them over the
+  // submitted payload so the store's optimistic insert keeps recurrence data.
+  return normalizeRecurrenceProperties({ ...payload, ...created } as CalendarEvent);
 }
 
 // Batch-create many events in one CalendarEvent/set. Returns the number created.
 export async function batchCreateEvents(
   events: Partial<CalendarEvent>[],
   calendarId: string,
+  targetAccountId?: string,
 ): Promise<number> {
   if (events.length === 0) return 0;
-  const accountId = jmapClient.accountId;
+  const accountId = targetAccountId || jmapClient.accountId;
   const create: Record<string, Partial<CalendarEvent>> = {};
   events.forEach((e, i) => {
-    create[`evt-${i}`] = { ...e, calendarIds: { [calendarId]: true } };
+    const payload: Record<string, unknown> = { ...e, calendarIds: { [calendarId]: true } };
+    cleanRecurrenceRules(payload);
+    create[`evt-${i}`] = payload as Partial<CalendarEvent>;
   });
   const res = await jmapClient.request(
     [['CalendarEvent/set', { accountId, create }, '0']],
@@ -211,8 +303,10 @@ export async function updateEvent(
   targetAccountId?: string,
 ): Promise<void> {
   const accountId = targetAccountId || jmapClient.accountId;
+  const patch: Record<string, unknown> = { ...changes };
+  cleanRecurrenceRules(patch);
   const res = await jmapClient.request(
-    [['CalendarEvent/set', setArgs(accountId, { update: { [id]: changes } }, sendSchedulingMessages), '0']],
+    [['CalendarEvent/set', setArgs(accountId, { update: { [id]: patch } }, sendSchedulingMessages), '0']],
     USING,
   );
   const result = methodResult<{ notUpdated?: Record<string, { description?: string; type?: string }> }>(res);
@@ -273,7 +367,8 @@ export async function parseCalendarBlob(blobId: string): Promise<Partial<Calenda
   if (result.notFound?.includes(blobId)) throw new Error('Uploaded file not found');
   const parsed = result.parsed?.[blobId];
   if (!parsed) return [];
-  return Array.isArray(parsed) ? parsed : [parsed];
+  const list = Array.isArray(parsed) ? parsed : [parsed];
+  return list.map(normalizeRecurrenceProperties);
 }
 
 export async function createCalendar(

src/api/jmap-client.ts

@@ -151,6 +151,7 @@ export class JMAPClient {
 
   private async persistRefreshedTokens(next: OAuthTokens): Promise<void> {
     if (!this.credentials) return;
+    if (this.credentials.accessToken === next.accessToken) return;
     this.credentials = {
       ...this.credentials,
       accessToken: next.accessToken,

src/api/types.ts

@@ -455,6 +455,9 @@ export interface CalendarEvent {
   excludedRecurrenceRules?: RecurrenceRule[];
   recurrenceId?: string;
   originalId?: string;
+  // Client-only: the event's server-side calendarIds (raw, unprefixed), kept
+  // when `calendarIds` is remapped to namespaced store ids for shared events.
+  originalCalendarIds?: Record<string, boolean>;
   useDefaultAlerts?: boolean;
   alerts?: Record<string, Alert>;
   locations?: Record<string, EventLocation>;
@@ -474,6 +477,8 @@ export interface CalendarEvent {
   // primary account; set for events on calendars shared with the user so
   // mutations can be routed to the owning account.
   accountId?: string;
+  // Client-only: true when the event lives on a calendar shared with the user.
+  isShared?: boolean;
 }
 
 export interface CalendarRights {
@@ -502,6 +507,10 @@ export interface Calendar {
   // Client-only: JMAP account the calendar was fetched from. Absent for the
   // primary account; set for calendars shared with the user.
   accountId?: string;
+  // Client-only: the real JMAP id of a shared calendar, before its `id` was
+  // namespaced as `${accountId}:${id}` to stay unique in the store. Mutations
+  // and event queries must use this raw id against the owning account.
+  originalId?: string;
   // Client-only: true when the calendar lives in another account (shared
   // with the user by its owner).
   isShared?: boolean;

src/api/unified-inbox.ts

@@ -101,7 +101,10 @@ async function ensureFreshCredentials(
       tokenEndpoint: next.tokenEndpoint,
       clientId: next.clientId,
     };
-    await jmapClient.setStoredCredentials(accountId, updated);
+    const current = await jmapClient.getStoredCredentials(accountId);
+    if (!current || current.accessToken !== updated.accessToken) {
+      await jmapClient.setStoredCredentials(accountId, updated);
+    }
     return updated;
   } catch {
     // Fall back to the existing (possibly expired) token; the request will

src/components/IdentitySheet.tsx

@@ -0,0 +1,205 @@
+import React from 'react';
+import {
+  View, Text, StyleSheet, ScrollView, Pressable, Modal, Animated, Easing,
+} from 'react-native';
+import { useSafeAreaInsets } from 'react-native-safe-area-context';
+import { X, Check, Mail } from 'lucide-react-native';
+import { spacing, radius, typography, type ThemePalette } from '../theme/tokens';
+import { useColors } from '../theme/colors';
+import { useSheetDrag } from '../lib/use-sheet-drag';
+import type { Identity } from '../api/types';
+import { useLocaleStore } from '../stores/locale-store';
+
+interface IdentitySheetProps {
+  visible: boolean;
+  onClose: () => void;
+  identities: Identity[];
+  selectedIdentityId: string | null;
+  onPick: (identity: Identity) => void;
+}
+
+export function IdentitySheet({
+  visible, onClose, identities, selectedIdentityId, onPick,
+}: IdentitySheetProps) {
+  const c = useColors();
+  const styles = React.useMemo(() => makeStyles(c), [c]);
+  const insets = useSafeAreaInsets();
+  const slideY = React.useRef(new Animated.Value(500)).current;
+  const overlayOpacity = React.useRef(new Animated.Value(0)).current;
+  const dragHandlers = useSheetDrag({ slideY, closedY: 500, onClose });
+  const { t } = useLocaleStore();
+
+  React.useEffect(() => {
+    if (visible) {
+      Animated.parallel([
+        Animated.timing(slideY, { toValue: 0, duration: 220, easing: Easing.out(Easing.cubic), useNativeDriver: true }),
+        Animated.timing(overlayOpacity, { toValue: 1, duration: 220, useNativeDriver: true }),
+      ]).start();
+    } else {
+      Animated.parallel([
+        Animated.timing(slideY, { toValue: 500, duration: 180, easing: Easing.in(Easing.cubic), useNativeDriver: true }),
+        Animated.timing(overlayOpacity, { toValue: 0, duration: 180, useNativeDriver: true }),
+      ]).start();
+    }
+  }, [visible, slideY, overlayOpacity]);
+
+  return (
+    <Modal visible={visible} transparent animationType="none" onRequestClose={onClose} statusBarTranslucent>
+      <Animated.View style={[styles.sheetOverlay, { opacity: overlayOpacity }]}>
+        <Pressable style={styles.sheetOverlayPress} onPress={onClose} />
+      </Animated.View>
+      <Animated.View
+        style={[
+          styles.sheet,
+          { paddingBottom: Math.max(insets.bottom, spacing.md), transform: [{ translateY: slideY }] },
+        ]}
+      >
+        <View {...dragHandlers}>
+          <View style={styles.sheetHandleHit}>
+            <View style={styles.sheetHandle} />
+          </View>
+          <View style={styles.sheetHeader}>
+            <Text style={styles.sheetTitle}>{t('email_composer.from', 'From')}</Text>
+            <Pressable onPress={onClose} hitSlop={8} style={styles.sheetClose}>
+              <X size={18} color={c.textSecondary} />
+            </Pressable>
+          </View>
+        </View>
+        <ScrollView style={styles.scrollList}>
+          {identities.map((identity) => {
+            const isSelected = identity.id === selectedIdentityId;
+            return (
+              <Pressable
+                key={identity.id}
+                onPress={() => {
+                  onPick(identity);
+                  onClose();
+                }}
+                style={({ pressed }) => [
+                  styles.identityRow,
+                  pressed && styles.identityRowPressed,
+                ]}
+              >
+                <View style={styles.iconWrap}>
+                  <Mail size={16} color={isSelected ? c.primary : c.textSecondary} />
+                </View>
+                <View style={styles.identityDetails}>
+                  {!!identity.name && (
+                    <Text style={styles.identityName} numberOfLines={1}>
+                      {identity.name}
+                    </Text>
+                  )}
+                  <Text style={[styles.identityEmail, !identity.name && styles.identityEmailOnly]} numberOfLines={1}>
+                    {identity.email}
+                  </Text>
+                </View>
+                {isSelected && (
+                  <View style={styles.checkWrap}>
+                    <Check size={16} color={c.primary} />
+                  </View>
+                )}
+              </Pressable>
+            );
+          })}
+        </ScrollView>
+      </Animated.View>
+    </Modal>
+  );
+}
+
+function makeStyles(c: ThemePalette) {
+  return StyleSheet.create({
+    sheetOverlay: {
+      ...StyleSheet.absoluteFillObject,
+      backgroundColor: 'rgba(0,0,0,0.5)',
+    },
+    sheetOverlayPress: { flex: 1 },
+    sheet: {
+      position: 'absolute',
+      left: 0,
+      right: 0,
+      bottom: 0,
+      maxHeight: '60%',
+      backgroundColor: c.popover,
+      borderTopLeftRadius: radius.lg,
+      borderTopRightRadius: radius.lg,
+      borderTopWidth: 1,
+      borderColor: c.border,
+      paddingTop: spacing.sm,
+    },
+    sheetHandleHit: {
+      alignItems: 'center',
+      paddingTop: spacing.xs,
+      paddingBottom: spacing.sm,
+    },
+    sheetHandle: {
+      width: 36,
+      height: 4,
+      borderRadius: 2,
+      backgroundColor: c.border,
+    },
+    sheetHeader: {
+      flexDirection: 'row',
+      alignItems: 'center',
+      justifyContent: 'space-between',
+      paddingHorizontal: spacing.lg,
+      paddingBottom: spacing.sm,
+      borderBottomWidth: 1,
+      borderBottomColor: c.border,
+    },
+    sheetTitle: {
+      ...typography.bodySemibold,
+      color: c.text,
+    },
+    sheetClose: {
+      width: 28,
+      height: 28,
+      alignItems: 'center',
+      justifyContent: 'center',
+      borderRadius: radius.xs,
+    },
+    scrollList: {
+      paddingVertical: spacing.xs,
+    },
+    identityRow: {
+      flexDirection: 'row',
+      alignItems: 'center',
+      paddingHorizontal: spacing.lg,
+      paddingVertical: spacing.md,
+      minHeight: 52,
+    },
+    identityRowPressed: {
+      backgroundColor: c.surfaceHover,
+    },
+    iconWrap: {
+      marginRight: spacing.md,
+      width: 28,
+      height: 28,
+      borderRadius: radius.xs,
+      backgroundColor: c.surface,
+      alignItems: 'center',
+      justifyContent: 'center',
+    },
+    identityDetails: {
+      flex: 1,
+      justifyContent: 'center',
+    },
+    identityName: {
+      ...typography.bodyMedium,
+      color: c.text,
+    },
+    identityEmail: {
+      ...typography.caption,
+      color: c.textSecondary,
+      marginTop: 2,
+    },
+    identityEmailOnly: {
+      ...typography.bodyMedium,
+      color: c.text,
+      marginTop: 0,
+    },
+    checkWrap: {
+      marginLeft: spacing.md,
+    },
+  });
+}

src/components/QrScanModal.tsx

@@ -53,16 +53,19 @@ export function QrScanModal({ visible, onClose, onScanned }: QrScanModalProps) {
             <Pressable onPress={onClose} hitSlop={10} style={styles.closeButton}>
               <X size={24} color="#ffffff" />
             </Pressable>
-            <Text style={styles.title}>Scan QR code</Text>
+            <Text style={styles.title}>Sign-in code</Text>
             <View style={styles.closeButton} />
           </View>
 
           {permission?.granted ? (
             <View style={styles.frameWrap}>
               <View style={styles.frame} />
-              <Text style={styles.hint}>
-                Point your camera at the QR code shown on the webmail settings screen.
-              </Text>
+              <View style={styles.hintWrap}>
+                <Text style={styles.hintTitle}>Open Bulwark on your computer</Text>
+                <Text style={styles.hint}>
+                  Settings → Devices → Add phone shows a code. Point the camera at it.
+                </Text>
+              </View>
             </View>
           ) : (
             <View style={styles.permissionWrap}>
@@ -105,11 +108,12 @@ function makeStyles(c: ThemePalette) {
       borderRadius: radius.lg,
       backgroundColor: 'transparent',
     },
+    hintWrap: { alignItems: 'center', gap: spacing.xs, paddingHorizontal: spacing.xxl },
+    hintTitle: { ...typography.bodySemibold, color: '#ffffff', textAlign: 'center' },
     hint: {
       ...typography.caption,
-      color: '#ffffff',
+      color: 'rgba(255,255,255,0.8)',
       textAlign: 'center',
-      paddingHorizontal: spacing.xxl,
     },
     permissionWrap: {
       flex: 1,

src/components/RichTextEditor.tsx

@@ -3,10 +3,7 @@ import { StyleSheet, View, Platform } from 'react-native';
 import { WebView, type WebViewMessageEvent } from 'react-native-webview';
 import { useColors } from '../theme/colors';
 import type { ThemePalette } from '../theme/tokens';
-
-// Minimum visible editor height (px). The editor auto-grows beyond this as the
-// user types, and the parent ScrollView handles overflow.
-const MIN_HEIGHT = 220;
+import { buildEditorHtml, MIN_EDITOR_HEIGHT } from '../lib/editor-html';
 
 export type RichTextCommand =
   | 'bold'
@@ -54,6 +51,13 @@ export interface RichTextEditorHandle {
   unsetLink(): void;
   insertImage(src: string, cid?: string, alt?: string): void;
   setHtml(html: string): void;
+  /**
+   * Read the live editor DOM content. Resolves with the current innerHTML or
+   * rejects after `timeoutMs` when the page script is dead or the bridge is
+   * broken — callers must treat that as "content unknown", never fall back to
+   * possibly-stale state (issue #9: doing so silently sent blank replies).
+   */
+  getHtml(timeoutMs?: number): Promise<string>;
   focus(): void;
 }
 
@@ -66,273 +70,6 @@ interface Props {
   onBlur?: () => void;
 }
 
-function buildEditorHtml(opts: {
-  initialHtml: string;
-  placeholder: string;
-  c: ThemePalette;
-}): string {
-  const { initialHtml, placeholder, c } = opts;
-  // Inject initial content as a JSON-encoded string so any HTML/quotes inside
-  // are safely embedded (no template literal collision with the script body).
-  const initialJson = JSON.stringify(initialHtml);
-  const placeholderJson = JSON.stringify(placeholder);
-
-  return `<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8" />
-<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no" />
-<style>
-  * { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
-  html, body { margin: 0; padding: 0; background: ${c.background}; color: ${c.text}; }
-  body {
-    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
-    font-size: 16px;
-    line-height: 1.5;
-    overflow-y: hidden;
-    -webkit-text-size-adjust: 100%;
-  }
-  #editor {
-    outline: none;
-    padding: 12px 16px 24px;
-    min-height: ${MIN_HEIGHT}px;
-    word-wrap: break-word;
-    overflow-wrap: anywhere;
-  }
-  #editor[data-empty="true"]::before {
-    content: attr(data-placeholder);
-    color: ${c.textMuted};
-    pointer-events: none;
-    position: absolute;
-  }
-  #editor p { margin: 0 0 12px 0; }
-  #editor p:last-child { margin-bottom: 0; }
-  #editor h1 { font-size: 1.4em; font-weight: 700; margin: 0 0 12px 0; line-height: 1.2; }
-  #editor h2 { font-size: 1.2em; font-weight: 700; margin: 0 0 10px 0; line-height: 1.3; }
-  #editor ul, #editor ol { margin: 0 0 12px 0; padding-left: 24px; }
-  #editor li { margin-bottom: 4px; }
-  #editor blockquote {
-    margin: 0 0 12px 0;
-    padding: 4px 0 4px 12px;
-    border-left: 3px solid ${c.border};
-    color: ${c.textSecondary};
-  }
-  #editor a { color: ${c.primary}; text-decoration: underline; }
-  #editor img { max-width: 100%; height: auto; border-radius: 4px; }
-  #editor pre, #editor code {
-    background: ${c.surfaceActive};
-    border-radius: 4px;
-    padding: 2px 4px;
-    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
-    font-size: 0.92em;
-  }
-  #editor pre { padding: 8px 12px; overflow-x: auto; }
-  ::selection { background: ${c.primary}33; }
-</style>
-</head>
-<body>
-<div id="editor" contenteditable="true" data-placeholder=${placeholderJson}></div>
-<script>
-(function () {
-  var editor = document.getElementById('editor');
-  var lastHtml = null;
-  var lastHeight = 0;
-
-  function refreshEmpty() {
-    var html = editor.innerHTML;
-    var isEmpty =
-      html === '' ||
-      html === '<br>' ||
-      html === '<p></p>' ||
-      html === '<p><br></p>' ||
-      editor.textContent.trim() === '' && editor.querySelectorAll('img').length === 0;
-    editor.setAttribute('data-empty', isEmpty ? 'true' : 'false');
-  }
-
-  function post(type, payload) {
-    if (window.ReactNativeWebView && window.ReactNativeWebView.postMessage) {
-      window.ReactNativeWebView.postMessage(JSON.stringify({ type: type, payload: payload }));
-    }
-  }
-
-  function reportHeight() {
-    var h = Math.max(${MIN_HEIGHT}, editor.scrollHeight + 8);
-    if (Math.abs(h - lastHeight) < 2) return;
-    lastHeight = h;
-    post('height', h);
-  }
-
-  function reportChange() {
-    refreshEmpty();
-    var html = editor.innerHTML;
-    if (html === lastHtml) return;
-    lastHtml = html;
-    post('change', html);
-  }
-
-  function reportSelection() {
-    function active(name) {
-      try { return document.queryCommandState(name); } catch (e) { return false; }
-    }
-    function inBlock(tag) {
-      var sel = window.getSelection();
-      if (!sel || !sel.rangeCount) return false;
-      var node = sel.anchorNode;
-      while (node && node !== editor) {
-        if (node.nodeType === 1 && node.tagName === tag) return true;
-        node = node.parentNode;
-      }
-      return false;
-    }
-    var state = {
-      bold: active('bold'),
-      italic: active('italic'),
-      underline: active('underline'),
-      strikeThrough: active('strikeThrough'),
-      ul: active('insertUnorderedList'),
-      ol: active('insertOrderedList'),
-      blockquote: inBlock('BLOCKQUOTE'),
-      h1: inBlock('H1'),
-      h2: inBlock('H2'),
-      alignLeft: active('justifyLeft'),
-      alignCenter: active('justifyCenter'),
-      alignRight: active('justifyRight'),
-      link: inBlock('A'),
-    };
-    post('selection', state);
-  }
-
-  // ── Initial content ────────────────────────────────────────────────
-  var initial = ${initialJson};
-  if (initial && typeof initial === 'string') editor.innerHTML = initial;
-  refreshEmpty();
-  lastHtml = editor.innerHTML;
-
-  editor.addEventListener('input', function () {
-    reportChange();
-    reportHeight();
-  });
-  editor.addEventListener('blur', function () { post('blur', null); });
-  editor.addEventListener('focus', function () { post('focus', null); });
-  document.addEventListener('selectionchange', function () {
-    if (document.activeElement === editor) reportSelection();
-  });
-
-  // ── Bridge: receive commands from RN ───────────────────────────────
-  window.__rne = {
-    exec: function (command, value) {
-      editor.focus();
-      try {
-        if (command === 'formatBlock' && value) {
-          // Toggle: if we're already in that block, switch to <p>.
-          var sel = window.getSelection();
-          if (sel && sel.rangeCount) {
-            var node = sel.anchorNode;
-            while (node && node !== editor) {
-              if (node.nodeType === 1 && node.tagName === value.toUpperCase()) {
-                document.execCommand('formatBlock', false, '<p>');
-                reportChange();
-                reportHeight();
-                reportSelection();
-                return;
-              }
-              node = node.parentNode;
-            }
-          }
-          document.execCommand('formatBlock', false, '<' + value.toLowerCase() + '>');
-        } else {
-          document.execCommand(command, false, value);
-        }
-      } catch (e) {}
-      reportChange();
-      reportHeight();
-      reportSelection();
-    },
-    setHtml: function (html) {
-      editor.innerHTML = html || '';
-      lastHtml = editor.innerHTML;
-      refreshEmpty();
-      reportChange();
-      reportHeight();
-    },
-    insertHtml: function (html) {
-      editor.focus();
-      try { document.execCommand('insertHTML', false, html); } catch (e) {}
-      reportChange();
-      reportHeight();
-    },
-    insertLink: function (url, label) {
-      editor.focus();
-      // Reject anything that isn't a safe scheme or an absolute path, so the
-      // user can't accidentally (or via a malicious paste) ship a
-      // javascript:/data: link to their recipient.
-      var safeSchemeRe = /^(https?:|mailto:|tel:|sms:|\/|\?|#)/i;
-      var trimmed = (url || '').trim();
-      if (!trimmed || !safeSchemeRe.test(trimmed)) return;
-      var sel = window.getSelection();
-      var hasSelection = sel && sel.rangeCount && !sel.getRangeAt(0).collapsed;
-      if (hasSelection) {
-        try { document.execCommand('createLink', false, trimmed); } catch (e) {}
-        // execCommand doesn't set rel; tag every anchor that points at this URL.
-        Array.prototype.forEach.call(editor.getElementsByTagName('a'), function (a) {
-          if (a.getAttribute('href') === trimmed) {
-            a.setAttribute('rel', 'noopener noreferrer nofollow');
-          }
-        });
-      } else {
-        var text = label && label.trim() ? label : trimmed;
-        var safe = text.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
-        var safeUrl = trimmed
-          .replace(/&/g, '&amp;')
-          .replace(/"/g, '&quot;')
-          .replace(/</g, '&lt;')
-          .replace(/>/g, '&gt;');
-        var html = '<a href="' + safeUrl + '" rel="noopener noreferrer nofollow">' + safe + '</a>';
-        try { document.execCommand('insertHTML', false, html); } catch (e) {}
-      }
-      reportChange();
-      reportHeight();
-      reportSelection();
-    },
-    unsetLink: function () {
-      editor.focus();
-      try { document.execCommand('unlink', false, null); } catch (e) {}
-      reportChange();
-      reportSelection();
-    },
-    insertImage: function (src, cid, alt) {
-      editor.focus();
-      var safeSrc = (src || '').replace(/"/g, '&quot;');
-      var safeAlt = (alt || '').replace(/&/g, '&amp;').replace(/"/g, '&quot;');
-      var safeCid = cid ? cid.replace(/"/g, '&quot;') : '';
-      var html = '<img src="' + safeSrc + '" alt="' + safeAlt + '"' +
-        (safeCid ? ' data-cid="' + safeCid + '"' : '') + ' />';
-      try { document.execCommand('insertHTML', false, html); } catch (e) {}
-      reportChange();
-      reportHeight();
-    },
-    focus: function () { editor.focus(); },
-  };
-
-  reportHeight();
-  reportChange();
-
-  // Re-measure after async layout (image loads, font swap).
-  window.addEventListener('load', function () {
-    setTimeout(reportHeight, 50);
-    setTimeout(reportHeight, 200);
-    setTimeout(reportHeight, 600);
-  });
-  if (window.ResizeObserver) {
-    new ResizeObserver(reportHeight).observe(editor);
-  }
-})();
-true;
-</script>
-</body>
-</html>`;
-}
-
 const RichTextEditor = React.forwardRef<RichTextEditorHandle, Props>(function RichTextEditor(
   { initialHtml = '', placeholder = '', onChange, onSelectionChange, onFocus, onBlur },
   ref,
@@ -340,7 +77,7 @@ const RichTextEditor = React.forwardRef<RichTextEditorHandle, Props>(function Ri
   const c = useColors();
   const styles = React.useMemo(() => makeStyles(c), [c]);
   const webViewRef = React.useRef<WebView>(null);
-  const [height, setHeight] = React.useState(MIN_HEIGHT);
+  const [height, setHeight] = React.useState(MIN_EDITOR_HEIGHT);
   const onChangeRef = React.useRef(onChange);
   const onSelectionRef = React.useRef(onSelectionChange);
   const onFocusRef = React.useRef(onFocus);
@@ -364,6 +101,27 @@ const RichTextEditor = React.forwardRef<RichTextEditorHandle, Props>(function Ri
     webViewRef.current?.injectJavaScript(`${script}; true;`);
   }, []);
 
+  // Pending getHtml() readbacks, keyed by request id. Timers reject requests
+  // the page never answers (dead script / broken bridge).
+  const snapshotSeq = React.useRef(0);
+  const pendingSnapshots = React.useRef(
+    new Map<number, {
+      resolve: (html: string) => void;
+      reject: (err: Error) => void;
+      timer: ReturnType<typeof setTimeout>;
+    }>(),
+  );
+  React.useEffect(() => {
+    const pending = pendingSnapshots.current;
+    return () => {
+      for (const { timer, reject } of pending.values()) {
+        clearTimeout(timer);
+        reject(new Error('Editor unmounted'));
+      }
+      pending.clear();
+    };
+  }, []);
+
   React.useImperativeHandle(ref, () => ({
     exec: (command) => {
       const [name, value] = command.split(':');
@@ -382,6 +140,16 @@ const RichTextEditor = React.forwardRef<RichTextEditorHandle, Props>(function Ri
     setHtml: (next) => {
       call(`window.__rne && window.__rne.setHtml(${JSON.stringify(next)})`);
     },
+    getHtml: (timeoutMs = 2000) =>
+      new Promise<string>((resolve, reject) => {
+        const id = ++snapshotSeq.current;
+        const timer = setTimeout(() => {
+          pendingSnapshots.current.delete(id);
+          reject(new Error('Editor did not answer'));
+        }, timeoutMs);
+        pendingSnapshots.current.set(id, { resolve, reject, timer });
+        call(`window.__rne && window.__rne.getHtml(${id})`);
+      }),
     focus: () => {
       call(`window.__rne && window.__rne.focus()`);
     },
@@ -400,7 +168,17 @@ const RichTextEditor = React.forwardRef<RichTextEditorHandle, Props>(function Ri
         break;
       case 'height': {
         const h = typeof data.payload === 'number' ? data.payload : Number(data.payload);
-        if (!Number.isNaN(h) && h > 0) setHeight(Math.max(MIN_HEIGHT, h));
+        if (!Number.isNaN(h) && h > 0) setHeight(Math.max(MIN_EDITOR_HEIGHT, h));
+        break;
+      }
+      case 'htmlSnapshot': {
+        const p = data.payload as { id?: number; html?: string } | null;
+        const entry = typeof p?.id === 'number' ? pendingSnapshots.current.get(p.id) : undefined;
+        if (entry) {
+          pendingSnapshots.current.delete(p!.id!);
+          clearTimeout(entry.timer);
+          entry.resolve(typeof p?.html === 'string' ? p.html : '');
+        }
         break;
       }
       case 'selection':

src/components/SwipeableRow.tsx

@@ -172,9 +172,9 @@ export function SwipeableRow({
           return;
         }
         // Instant mode: fire on release-past-threshold, no second tap.
-        if (g.dx >= COMMIT_THRESHOLD && rightAction !== 'none') {
+        if ((g.dx >= COMMIT_THRESHOLD || (g.dx > 40 && g.vx >= 0.5)) && rightAction !== 'none') {
           fly(widthRef.current || EXIT_DISTANCE, rightAction);
-        } else if (g.dx <= -COMMIT_THRESHOLD && leftAction !== 'none') {
+        } else if ((g.dx <= -COMMIT_THRESHOLD || (g.dx < -40 && g.vx <= -0.5)) && leftAction !== 'none') {
           fly(-(widthRef.current || EXIT_DISTANCE), leftAction);
         } else {
           Animated.spring(dx, { toValue: 0, useNativeDriver: true, speed: 24, bounciness: 4 }).start();

src/components/UndoSnackbar.tsx

@@ -83,6 +83,7 @@ function makeStyles(c: ThemePalette) {
       position: 'absolute',
       left: spacing.md,
       right: spacing.md,
+      zIndex: 50,
     },
     bar: {
       flexDirection: 'row',

src/components/index.ts

@@ -5,3 +5,5 @@ export { default as Badge } from './Badge';
 export { Card, SectionHeader, SettingItemRow } from './Card';
 export { default as RadioGroup } from './RadioGroup';
 export { default as Dialog } from './Dialog';
+export { IdentitySheet } from './IdentitySheet';
+

src/lib/__tests__/editor-html.test.ts

@@ -0,0 +1,58 @@
+import { describe, expect, it } from 'vitest';
+import { buildEditorHtml } from '../editor-html';
+import { LIGHT_COLORS, DARK_COLORS } from '../../theme/tokens';
+
+function extractScript(html: string): string {
+  const m = html.match(/<script>([\s\S]*?)<\/script>/);
+  expect(m, 'page must contain an inline <script>').toBeTruthy();
+  return m![1];
+}
+
+describe('buildEditorHtml', () => {
+  const base = { initialHtml: '<p><br></p>', placeholder: 'Write…', c: LIGHT_COLORS };
+
+  // Regression for issue #11: backslash escapes inside the template literal
+  // are cooked away (`\/` → `/`), which once emitted an invalid regex. That
+  // SyntaxError killed the entire inline script, so the editor never posted
+  // `change` messages and Send stayed disabled on Android/iOS.
+  it('emits an inline script that parses as valid JavaScript', () => {
+    for (const c of [LIGHT_COLORS, DARK_COLORS]) {
+      const script = extractScript(buildEditorHtml({ ...base, c }));
+      // new Function() parses without executing (script needs a DOM to run).
+      expect(() => new Function(script)).not.toThrow();
+    }
+  });
+
+  it('emits no cooked-away backslashes in the script', () => {
+    // The page script is written escape-free on purpose; a backslash-free
+    // source cannot silently lose escapes to template-literal cooking.
+    const script = extractScript(buildEditorHtml(base));
+    expect(script).not.toContain('\\');
+  });
+
+  it('embeds initial content and placeholder as JSON strings', () => {
+    const html = buildEditorHtml({
+      ...base,
+      initialHtml: '<p>He said "hi" & left</p>',
+      placeholder: 'Say "something"…',
+    });
+    expect(html).toContain(JSON.stringify('<p>He said "hi" & left</p>'));
+    expect(html).toContain(`data-placeholder=${JSON.stringify('Say "something"…')}`);
+  });
+
+  it('keeps the editor contenteditable and the bridge object wiring', () => {
+    const html = buildEditorHtml(base);
+    expect(html).toContain('<div id="editor" contenteditable="true"');
+    const script = extractScript(html);
+    expect(script).toContain('window.__rne');
+    expect(script).toContain('ReactNativeWebView.postMessage');
+  });
+
+  // Regression for issue #9: sends must be able to read the live DOM back
+  // instead of trusting async `change` messages that can lag or be lost.
+  it('exposes the send-time getHtml readback on the bridge', () => {
+    const script = extractScript(buildEditorHtml(base));
+    expect(script).toContain('getHtml: function (id)');
+    expect(script).toContain("post('htmlSnapshot', { id: id, html: editor.innerHTML })");
+  });
+});

src/lib/__tests__/login-errors.test.ts

@@ -0,0 +1,59 @@
+import { describe, it, expect } from 'vitest';
+import { describeLoginError } from '../login-errors';
+
+function named(name: string, message: string): Error {
+  const err = new Error(message);
+  err.name = name;
+  return err;
+}
+
+describe('describeLoginError', () => {
+  it('turns a rejected credential into an actionable message', () => {
+    const copy = describeLoginError(named('AuthenticationError', 'Invalid credentials'));
+    expect(copy.title).toBe("That didn't work");
+    expect(copy.detail).toMatch(/app password/i);
+  });
+
+  it('names the host it could not reach', () => {
+    const copy = describeLoginError(named('NetworkError', 'Network request failed'), {
+      serverUrl: 'https://mail.example.com',
+    });
+    expect(copy.title).toBe("Can't reach mail.example.com");
+  });
+
+  it('falls back to a generic host label when the server is unknown', () => {
+    const copy = describeLoginError(named('TypeError', 'Network request failed'));
+    expect(copy.title).toBe("Can't reach the server");
+  });
+
+  it('explains a 404 from session discovery as a wrong address', () => {
+    const copy = describeLoginError(new Error('Session discovery failed: 404 Not Found'), {
+      serverUrl: 'https://example.com',
+    });
+    expect(copy.title).toBe('No mail server at example.com');
+  });
+
+  it('flags a certificate problem separately from a connection problem', () => {
+    const copy = describeLoginError(new Error('SSL certificate has expired'), {
+      serverUrl: 'https://mail.example.com',
+    });
+    expect(copy.title).toBe("Couldn't verify mail.example.com");
+  });
+
+  it('explains an expired pairing code', () => {
+    const copy = describeLoginError(new Error('Pairing code is invalid or has expired'));
+    expect(copy.title).toBe('That code has expired');
+    expect(copy.detail).toMatch(/fresh one/i);
+  });
+
+  it('passes through an unrecognised message rather than inventing a cause', () => {
+    const copy = describeLoginError(new Error('Teapot refused to brew'));
+    expect(copy.title).toBe('Sign-in failed');
+    expect(copy.detail).toBe('Teapot refused to brew');
+  });
+
+  it('handles non-Error throws', () => {
+    expect(describeLoginError(undefined).title).toBe('Sign-in failed');
+    expect(describeLoginError('boom').detail).toBe('boom');
+  });
+});

src/lib/__tests__/oauth.test.ts

@@ -0,0 +1,89 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+
+const { mockSecureFetch } = vi.hoisted(() => ({
+  mockSecureFetch: vi.fn(),
+}));
+
+vi.mock('../client-cert', () => ({
+  secureFetch: mockSecureFetch,
+}));
+
+import { refreshOAuthAccessToken, type OAuthTokens } from '../oauth';
+
+describe('oauth token refresh deduplication', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it('should only send a single HTTP request when refreshOAuthAccessToken is called concurrently with the same refresh token', async () => {
+    const tokens: OAuthTokens = {
+      accessToken: 'old-access',
+      refreshToken: 'same-refresh-token',
+      expiresAt: 123456,
+      tokenEndpoint: 'https://auth.example.com/token',
+      clientId: 'client-id-123',
+    };
+
+    // Set up a mock response that takes a brief moment to resolve
+    mockSecureFetch.mockImplementation(async () => {
+      await new Promise((resolve) => setTimeout(resolve, 50));
+      return {
+        ok: true,
+        status: 200,
+        json: async () => ({
+          access_token: 'new-access-token',
+          refresh_token: 'rotated-refresh-token',
+          expires_in: 3600,
+        }),
+      } as Response;
+    });
+
+    // Fire two refreshes concurrently
+    const [res1, res2] = await Promise.all([
+      refreshOAuthAccessToken(tokens),
+      refreshOAuthAccessToken(tokens),
+    ]);
+
+    // Check that secureFetch was called exactly once
+    expect(mockSecureFetch).toHaveBeenCalledTimes(1);
+
+    // Verify both calls received the exact same updated token bundle
+    expect(res1.accessToken).toBe('new-access-token');
+    expect(res1.refreshToken).toBe('rotated-refresh-token');
+    expect(res2.accessToken).toBe('new-access-token');
+    expect(res2.refreshToken).toBe('rotated-refresh-token');
+
+    // Fire another refresh after the first completes (now the map should be empty for this token)
+    mockSecureFetch.mockClear();
+    const res3 = await refreshOAuthAccessToken(tokens);
+    expect(mockSecureFetch).toHaveBeenCalledTimes(1);
+    expect(res3.accessToken).toBe('new-access-token');
+  });
+
+  it('should propagate errors to all waiters if the HTTP request fails', async () => {
+    const tokens: OAuthTokens = {
+      accessToken: 'old-access',
+      refreshToken: 'failing-refresh-token',
+      expiresAt: 123456,
+      tokenEndpoint: 'https://auth.example.com/token',
+      clientId: 'client-id-123',
+    };
+
+    mockSecureFetch.mockImplementation(async () => {
+      await new Promise((resolve) => setTimeout(resolve, 50));
+      return {
+        ok: false,
+        status: 400,
+      } as Response;
+    });
+
+    // Fire two refreshes concurrently and check that both reject with the same error
+    const promise1 = refreshOAuthAccessToken(tokens);
+    const promise2 = refreshOAuthAccessToken(tokens);
+
+    await expect(promise1).rejects.toThrow('Token refresh failed: 400');
+    await expect(promise2).rejects.toThrow('Token refresh failed: 400');
+
+    expect(mockSecureFetch).toHaveBeenCalledTimes(1);
+  });
+});

src/lib/__tests__/push-notifications.test.ts

@@ -0,0 +1,149 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+
+// Provide the Android native FCM surface setupPushNotifications needs. The
+// global test-setup mocks react-native with an empty NativeModules, so override
+// it here with a BulwarkFcm module and a pre-33 Platform.Version (which skips
+// the runtime permission request).
+vi.mock('react-native', () => {
+  class NativeEventEmitter {
+    addListener() {
+      return { remove: () => undefined };
+    }
+  }
+  return {
+    Platform: { OS: 'android', Version: 30, select: <T,>(s: { default?: T; android?: T }) => s.android ?? s.default },
+    NativeModules: {
+      BulwarkFcm: {
+        getToken: vi.fn(async () => 'fcm-token-xyz'),
+        deleteToken: vi.fn(async () => undefined),
+      },
+    },
+    NativeEventEmitter,
+    PermissionsAndroid: { RESULTS: { GRANTED: 'granted' }, request: vi.fn(async () => 'granted') },
+  };
+});
+
+vi.mock('../../api/jmap-client', () => ({
+  jmapClient: { username: 'user@example.com', serverUrl: 'https://mail.example.com' },
+}));
+
+vi.mock('../../api/push', () => ({
+  listPushSubscriptions: vi.fn(async () => []),
+  createPushSubscription: vi.fn(async () => 'new-server-id'),
+  verifyPushSubscription: vi.fn(async () => undefined),
+  destroyPushSubscription: vi.fn(async () => undefined),
+  updatePushSubscription: vi.fn(async () => true),
+}));
+
+import AsyncStorage from '@react-native-async-storage/async-storage';
+import { setupPushNotifications, deviceClientIdKey } from '../push-notifications';
+import {
+  listPushSubscriptions,
+  createPushSubscription,
+  destroyPushSubscription,
+} from '../../api/push';
+import { generateAccountId } from '../account-utils';
+
+const OUR_DCID = 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa';
+const ACCOUNT_ID = generateAccountId('user@example.com', 'https://mail.example.com');
+const RELAY = 'https://relay.example.com';
+
+// State the fake relay reports for each foreign deviceClientId's /active probe.
+type RelayState = 'dead' | 'live' | 'unknown';
+
+function installFetch(states: Record<string, RelayState>): void {
+  global.fetch = vi.fn(async (input: RequestInfo | URL) => {
+    const url = typeof input === 'string' ? input : input.toString();
+    if (url.includes('/api/push/register')) {
+      return { ok: true, status: 200, json: async () => ({ ok: true }) } as Response;
+    }
+    if (url.includes('/api/push/verify/')) {
+      return { ok: true, status: 200, json: async () => ({ verificationCode: 'CODE' }) } as Response;
+    }
+    const active = url.match(/\/api\/push\/active\/([^/?]+)$/);
+    if (active) {
+      const dcid = decodeURIComponent(active[1]);
+      const state = states[dcid] ?? 'unknown';
+      if (state === 'unknown') {
+        return { ok: false, status: 404, json: async () => ({ error: 'Unknown subscription' }) } as Response;
+      }
+      return { ok: true, status: 200, json: async () => ({ active: state === 'live' }) } as Response;
+    }
+    throw new Error(`unexpected fetch: ${url}`);
+  }) as typeof fetch;
+}
+
+const destroyMock = destroyPushSubscription as ReturnType<typeof vi.fn>;
+const listMock = listPushSubscriptions as ReturnType<typeof vi.fn>;
+const createMock = createPushSubscription as ReturnType<typeof vi.fn>;
+
+function sub(id: string, deviceClientId: string) {
+  return { id, deviceClientId, expires: new Date(Date.now() + 86400000).toISOString(), types: ['Email'] };
+}
+
+describe('setupPushNotifications leftover reaping', () => {
+  beforeEach(async () => {
+    vi.clearAllMocks();
+    await AsyncStorage.clear();
+    // Pin our deviceClientId so we control which leftovers are "ours".
+    await AsyncStorage.setItem(deviceClientIdKey(ACCOUNT_ID), OUR_DCID);
+  });
+
+  it('reaps our own and relay-confirmed-dead leftovers, keeps live and unverifiable ones', async () => {
+    listMock.mockResolvedValue([
+      sub('own-old', OUR_DCID), // our own previous attempt -> reap
+      sub('foreign-dead', 'deaddeaddeaddeaddeaddeaddeaddead'), // relay: dead -> reap
+      sub('foreign-live', 'livelivelivelivelivelivelivelive'), // relay: live -> keep
+      sub('foreign-unknown', 'unknwunknwunknwunknwunknwunknwun'), // relay: 404 -> keep
+    ]);
+    installFetch({
+      deaddeaddeaddeaddeaddeaddeaddead: 'dead',
+      livelivelivelivelivelivelivelive: 'live',
+      unknwunknwunknwunknwunknwunknwun: 'unknown',
+    });
+
+    const result = await setupPushNotifications({ relayBaseUrl: RELAY });
+
+    expect(result.verified).toBe(true);
+    const reaped = destroyMock.mock.calls.map((c) => c[0]);
+    expect(reaped).toContain('own-old');
+    expect(reaped).toContain('foreign-dead');
+    expect(reaped).not.toContain('foreign-live');
+    expect(reaped).not.toContain('foreign-unknown');
+  });
+
+  it('keeps foreign subs when the relay probe fails (network error)', async () => {
+    listMock.mockResolvedValue([sub('foreign-x', 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx')]);
+    global.fetch = vi.fn(async (input: RequestInfo | URL) => {
+      const url = typeof input === 'string' ? input : input.toString();
+      if (url.includes('/api/push/register')) {
+        return { ok: true, status: 200, json: async () => ({ ok: true }) } as Response;
+      }
+      if (url.includes('/api/push/verify/')) {
+        return { ok: true, status: 200, json: async () => ({ verificationCode: 'CODE' }) } as Response;
+      }
+      if (url.includes('/api/push/active/')) throw new Error('network down');
+      throw new Error(`unexpected fetch: ${url}`);
+    }) as typeof fetch;
+
+    await setupPushNotifications({ relayBaseUrl: RELAY });
+
+    expect(destroyMock.mock.calls.map((c) => c[0])).not.toContain('foreign-x');
+  });
+
+  it('coalesces concurrent setups into a single flow (no subscription swarm)', async () => {
+    listMock.mockResolvedValue([]);
+    installFetch({});
+
+    // Fire several overlapping setups, as App.tsx does while auth settles and
+    // on FCM token refresh. Only one underlying JMAP subscription must be made.
+    const results = await Promise.all([
+      setupPushNotifications({ relayBaseUrl: RELAY }),
+      setupPushNotifications({ relayBaseUrl: RELAY }),
+      setupPushNotifications({ relayBaseUrl: RELAY }),
+    ]);
+
+    expect(createMock).toHaveBeenCalledTimes(1);
+    expect(new Set(results.map((r) => r.subscriptionId)).size).toBe(1);
+  });
+});

src/lib/__tests__/recurrence-expansion.test.ts

@@ -74,6 +74,54 @@ describe('expandRecurringEvents - weekly', () => {
   });
 });
 
+describe('expandRecurringEvents - interval > 1 (#13)', () => {
+  it('expands an every-5-weeks rule', () => {
+    const rule: RecurrenceRule = { frequency: 'weekly', interval: 5 };
+    const result = expandRecurringEvents(
+      [ev({ recurrenceRules: [rule] })], // starts Mon 2026-04-06
+      '2026-04-01T00:00:00',
+      '2026-08-01T00:00:00',
+    );
+    expect(result.map((e) => e.start)).toEqual([
+      '2026-04-06T09:00:00',
+      '2026-05-11T09:00:00',
+      '2026-06-15T09:00:00',
+      '2026-07-20T09:00:00',
+    ]);
+  });
+
+  it('expands an every-5-weeks series started long before the visible range', () => {
+    const event = ev({
+      start: '2025-01-06T09:00:00', // Monday
+      recurrenceRules: [{ frequency: 'weekly', interval: 5 }],
+    });
+    // Occurrences fall every 35 days from 2025-01-06 (…2026-04-06, 05-11,
+    // 06-15, 07-20…) — only those inside the window are returned.
+    const result = expandRecurringEvents([event], '2026-05-01T00:00:00', '2026-08-01T00:00:00');
+    expect(result.map((e) => e.start)).toEqual([
+      '2026-05-11T09:00:00',
+      '2026-06-15T09:00:00',
+      '2026-07-20T09:00:00',
+    ]);
+  });
+
+  it('expands an every-2-months rule', () => {
+    const rule: RecurrenceRule = { frequency: 'monthly', interval: 2 };
+    const result = expandRecurringEvents(
+      [ev({ recurrenceRules: [rule] })],
+      '2026-04-01T00:00:00',
+      '2026-12-31T00:00:00',
+    );
+    expect(result.map((e) => e.start)).toEqual([
+      '2026-04-06T09:00:00',
+      '2026-06-06T09:00:00',
+      '2026-08-06T09:00:00',
+      '2026-10-06T09:00:00',
+      '2026-12-06T09:00:00',
+    ]);
+  });
+});
+
 describe('expandRecurringEvents - monthly', () => {
   it('expands monthly on the 6th', () => {
     const rule: RecurrenceRule = { frequency: 'monthly', count: 3 };

src/lib/__tests__/server-discovery.test.ts

@@ -0,0 +1,184 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+
+const { mockSecureFetch } = vi.hoisted(() => ({
+  mockSecureFetch: vi.fn(),
+}));
+
+vi.mock('../client-cert', () => ({
+  secureFetch: mockSecureFetch,
+}));
+
+import {
+  normalizeServerUrl,
+  emailDomain,
+  isEmailAddress,
+  serverCandidates,
+  probeJmapServer,
+  discoverServerForEmail,
+} from '../server-discovery';
+
+const SESSION_DOC = { capabilities: {}, apiUrl: '/jmap/', primaryAccounts: {} };
+
+/**
+ * Answers `status` for the listed base URLs and rejects everything else. A 200
+ * yields a JMAP session document unless a body is given explicitly.
+ */
+function respondFor(statuses: Record<string, number | { status: number; body: unknown }>) {
+  mockSecureFetch.mockImplementation(async (url: string) => {
+    const base = url.replace(/\/\.well-known\/jmap$/, '');
+    const entry = statuses[base];
+    if (entry === undefined) throw new TypeError('Network request failed');
+    const { status, body } =
+      typeof entry === 'number' ? { status: entry, body: SESSION_DOC } : entry;
+    return { status, json: async () => body } as Response;
+  });
+}
+
+describe('normalizeServerUrl', () => {
+  it('adds https:// to a bare host', () => {
+    expect(normalizeServerUrl('mail.example.com')).toBe('https://mail.example.com');
+  });
+
+  it('strips trailing slashes', () => {
+    expect(normalizeServerUrl('https://mail.example.com//')).toBe('https://mail.example.com');
+  });
+
+  it('strips a pasted JMAP session endpoint', () => {
+    expect(normalizeServerUrl('https://mail.example.com/.well-known/jmap')).toBe(
+      'https://mail.example.com',
+    );
+    expect(normalizeServerUrl('mail.example.com/jmap')).toBe('https://mail.example.com');
+  });
+
+  it('keeps an explicit http scheme and port', () => {
+    expect(normalizeServerUrl('http://localhost:8080')).toBe('http://localhost:8080');
+  });
+
+  it('rejects non-http schemes', () => {
+    expect(normalizeServerUrl('ftp://mail.example.com')).toBeNull();
+    expect(normalizeServerUrl('bulwarkmail://connect')).toBeNull();
+  });
+
+  it('rejects input that is not a host', () => {
+    expect(normalizeServerUrl('')).toBeNull();
+    expect(normalizeServerUrl('   ')).toBeNull();
+    expect(normalizeServerUrl('not a host')).toBeNull();
+    expect(normalizeServerUrl('ada@example.com')).toBeNull();
+    // A single label can't be a public host — except localhost.
+    expect(normalizeServerUrl('example')).toBeNull();
+    expect(normalizeServerUrl('localhost')).toBe('https://localhost');
+  });
+});
+
+describe('emailDomain', () => {
+  it('extracts and lowercases the domain', () => {
+    expect(emailDomain('Ada@Example.COM')).toBe('example.com');
+  });
+
+  it('rejects anything that is not an address', () => {
+    expect(emailDomain('ada')).toBeNull();
+    expect(emailDomain('ada@localhost')).toBeNull();
+    expect(emailDomain('a@b@example.com')).toBeNull();
+    expect(isEmailAddress('ada@example.com')).toBe(true);
+    expect(isEmailAddress('ada')).toBe(false);
+  });
+});
+
+describe('serverCandidates', () => {
+  it('orders the bare domain ahead of the conventional subdomains', () => {
+    expect(serverCandidates('example.com')).toEqual([
+      'https://example.com',
+      'https://mail.example.com',
+      'https://webmail.example.com',
+    ]);
+  });
+});
+
+describe('probeJmapServer', () => {
+  beforeEach(() => vi.clearAllMocks());
+
+  it('treats 200 as a hit', async () => {
+    respondFor({ 'https://mail.example.com': 200 });
+    await expect(probeJmapServer('https://mail.example.com')).resolves.toBe(true);
+  });
+
+  it('treats 401 as a hit — an unauthenticated probe is meant to be rejected', async () => {
+    respondFor({ 'https://mail.example.com': 401 });
+    await expect(probeJmapServer('https://mail.example.com')).resolves.toBe(true);
+  });
+
+  it('treats 404 and transport failures as a miss', async () => {
+    respondFor({ 'https://mail.example.com': 404 });
+    await expect(probeJmapServer('https://mail.example.com')).resolves.toBe(false);
+    await expect(probeJmapServer('https://nothing.example.com')).resolves.toBe(false);
+  });
+
+  it('rejects a 200 that is not a session document', async () => {
+    // A catch-all web server or captive portal answering 200 for every path.
+    respondFor({ 'https://example.com': { status: 200, body: '<!doctype html>' } });
+    await expect(probeJmapServer('https://example.com')).resolves.toBe(false);
+  });
+
+  it('rejects a 200 whose body is not JSON at all', async () => {
+    mockSecureFetch.mockResolvedValue({
+      status: 200,
+      json: async () => {
+        throw new SyntaxError('Unexpected token <');
+      },
+    } as unknown as Response);
+    await expect(probeJmapServer('https://example.com')).resolves.toBe(false);
+  });
+
+  it('gives up at the deadline instead of hanging', async () => {
+    mockSecureFetch.mockImplementation(
+      () => new Promise(() => {/* never settles */}),
+    );
+    await expect(probeJmapServer('https://slow.example.com', 20)).resolves.toBe(false);
+  });
+});
+
+describe('discoverServerForEmail', () => {
+  beforeEach(() => vi.clearAllMocks());
+
+  it('returns a known account server for the same domain without probing', async () => {
+    respondFor({});
+    const found = await discoverServerForEmail('ada@example.com', {
+      knownServerUrls: ['https://mail.example.com'],
+    });
+    expect(found).toBe('https://mail.example.com');
+    expect(mockSecureFetch).not.toHaveBeenCalled();
+  });
+
+  it('prefers the bare domain when several hosts answer', async () => {
+    respondFor({ 'https://example.com': 401, 'https://mail.example.com': 200 });
+    await expect(discoverServerForEmail('ada@example.com')).resolves.toBe('https://example.com');
+  });
+
+  it('falls back to mail.<domain> when the bare domain is not a JMAP server', async () => {
+    respondFor({ 'https://example.com': 404, 'https://mail.example.com': 401 });
+    await expect(discoverServerForEmail('ada@example.com')).resolves.toBe(
+      'https://mail.example.com',
+    );
+  });
+
+  it('skips a bare domain that only serves a marketing site', async () => {
+    respondFor({
+      'https://example.com': { status: 200, body: '<!doctype html>' },
+      'https://mail.example.com': 200,
+    });
+    await expect(discoverServerForEmail('ada@example.com')).resolves.toBe(
+      'https://mail.example.com',
+    );
+  });
+
+  it('returns null when nothing answers, so the caller can ask', async () => {
+    respondFor({});
+    await expect(discoverServerForEmail('ada@example.org')).resolves.toBeNull();
+  });
+
+  it('returns null without touching the network for a non-address', async () => {
+    respondFor({});
+    await expect(discoverServerForEmail('ada')).resolves.toBeNull();
+    expect(mockSecureFetch).not.toHaveBeenCalled();
+  });
+});

src/lib/editor-html.ts

@@ -0,0 +1,292 @@
+// Builds the self-contained HTML document for the RichTextEditor WebView.
+// Kept as a pure module (no react-native imports) so tests can assert the
+// embedded page script stays syntactically valid JavaScript.
+//
+// IMPORTANT: the page script lives inside a JS template literal. Backslash
+// escapes are "cooked" by the template (`\/` becomes `/`, `\s` becomes `s`),
+// which once shipped an invalid regex that killed the whole inline script
+// with a SyntaxError (issue #11 — Send stayed disabled because the editor
+// never posted `change` messages). Never rely on a backslash reaching the
+// page verbatim; write escape-free code or double the backslash.
+
+import type { ThemePalette } from '../theme/tokens';
+
+// Minimum visible editor height (px). The editor auto-grows beyond this as the
+// user types, and the parent ScrollView handles overflow.
+export const MIN_EDITOR_HEIGHT = 220;
+
+export function buildEditorHtml(opts: {
+  initialHtml: string;
+  placeholder: string;
+  c: ThemePalette;
+}): string {
+  const { initialHtml, placeholder, c } = opts;
+  // Inject initial content as a JSON-encoded string so any HTML/quotes inside
+  // are safely embedded (no template literal collision with the script body).
+  const initialJson = JSON.stringify(initialHtml);
+  const placeholderJson = JSON.stringify(placeholder);
+
+  return `<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8" />
+<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no" />
+<style>
+  * { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
+  html, body { margin: 0; padding: 0; background: ${c.background}; color: ${c.text}; }
+  body {
+    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
+    font-size: 16px;
+    line-height: 1.5;
+    overflow-y: hidden;
+    -webkit-text-size-adjust: 100%;
+  }
+  #editor {
+    outline: none;
+    padding: 12px 16px 24px;
+    min-height: ${MIN_EDITOR_HEIGHT}px;
+    word-wrap: break-word;
+    overflow-wrap: anywhere;
+  }
+  #editor[data-empty="true"]::before {
+    content: attr(data-placeholder);
+    color: ${c.textMuted};
+    pointer-events: none;
+    position: absolute;
+  }
+  #editor p { margin: 0 0 12px 0; }
+  #editor p:last-child { margin-bottom: 0; }
+  #editor h1 { font-size: 1.4em; font-weight: 700; margin: 0 0 12px 0; line-height: 1.2; }
+  #editor h2 { font-size: 1.2em; font-weight: 700; margin: 0 0 10px 0; line-height: 1.3; }
+  #editor ul, #editor ol { margin: 0 0 12px 0; padding-left: 24px; }
+  #editor li { margin-bottom: 4px; }
+  #editor blockquote {
+    margin: 0 0 12px 0;
+    padding: 4px 0 4px 12px;
+    border-left: 3px solid ${c.border};
+    color: ${c.textSecondary};
+  }
+  #editor a { color: ${c.primary}; text-decoration: underline; }
+  #editor img { max-width: 100%; height: auto; border-radius: 4px; }
+  #editor pre, #editor code {
+    background: ${c.surfaceActive};
+    border-radius: 4px;
+    padding: 2px 4px;
+    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
+    font-size: 0.92em;
+  }
+  #editor pre { padding: 8px 12px; overflow-x: auto; }
+  ::selection { background: ${c.primary}33; }
+</style>
+</head>
+<body>
+<div id="editor" contenteditable="true" data-placeholder=${placeholderJson}></div>
+<script>
+(function () {
+  var editor = document.getElementById('editor');
+  var lastHtml = null;
+  var lastHeight = 0;
+
+  function refreshEmpty() {
+    var html = editor.innerHTML;
+    var isEmpty =
+      html === '' ||
+      html === '<br>' ||
+      html === '<p></p>' ||
+      html === '<p><br></p>' ||
+      editor.textContent.trim() === '' && editor.querySelectorAll('img').length === 0;
+    editor.setAttribute('data-empty', isEmpty ? 'true' : 'false');
+  }
+
+  function post(type, payload) {
+    if (window.ReactNativeWebView && window.ReactNativeWebView.postMessage) {
+      window.ReactNativeWebView.postMessage(JSON.stringify({ type: type, payload: payload }));
+    }
+  }
+
+  function reportHeight() {
+    var h = Math.max(${MIN_EDITOR_HEIGHT}, editor.scrollHeight + 8);
+    if (Math.abs(h - lastHeight) < 2) return;
+    lastHeight = h;
+    post('height', h);
+  }
+
+  function reportChange() {
+    refreshEmpty();
+    var html = editor.innerHTML;
+    if (html === lastHtml) return;
+    lastHtml = html;
+    post('change', html);
+  }
+
+  function reportSelection() {
+    function active(name) {
+      try { return document.queryCommandState(name); } catch (e) { return false; }
+    }
+    function inBlock(tag) {
+      var sel = window.getSelection();
+      if (!sel || !sel.rangeCount) return false;
+      var node = sel.anchorNode;
+      while (node && node !== editor) {
+        if (node.nodeType === 1 && node.tagName === tag) return true;
+        node = node.parentNode;
+      }
+      return false;
+    }
+    var state = {
+      bold: active('bold'),
+      italic: active('italic'),
+      underline: active('underline'),
+      strikeThrough: active('strikeThrough'),
+      ul: active('insertUnorderedList'),
+      ol: active('insertOrderedList'),
+      blockquote: inBlock('BLOCKQUOTE'),
+      h1: inBlock('H1'),
+      h2: inBlock('H2'),
+      alignLeft: active('justifyLeft'),
+      alignCenter: active('justifyCenter'),
+      alignRight: active('justifyRight'),
+      link: inBlock('A'),
+    };
+    post('selection', state);
+  }
+
+  // ── Initial content ────────────────────────────────────────────────
+  var initial = ${initialJson};
+  if (initial && typeof initial === 'string') editor.innerHTML = initial;
+  refreshEmpty();
+  lastHtml = editor.innerHTML;
+
+  editor.addEventListener('input', function () {
+    reportChange();
+    reportHeight();
+  });
+  editor.addEventListener('blur', function () { post('blur', null); });
+  editor.addEventListener('focus', function () { post('focus', null); });
+  document.addEventListener('selectionchange', function () {
+    if (document.activeElement === editor) reportSelection();
+  });
+
+  // ── Bridge: receive commands from RN ───────────────────────────────
+  window.__rne = {
+    exec: function (command, value) {
+      editor.focus();
+      try {
+        if (command === 'formatBlock' && value) {
+          // Toggle: if we're already in that block, switch to <p>.
+          var sel = window.getSelection();
+          if (sel && sel.rangeCount) {
+            var node = sel.anchorNode;
+            while (node && node !== editor) {
+              if (node.nodeType === 1 && node.tagName === value.toUpperCase()) {
+                document.execCommand('formatBlock', false, '<p>');
+                reportChange();
+                reportHeight();
+                reportSelection();
+                return;
+              }
+              node = node.parentNode;
+            }
+          }
+          document.execCommand('formatBlock', false, '<' + value.toLowerCase() + '>');
+        } else {
+          document.execCommand(command, false, value);
+        }
+      } catch (e) {}
+      reportChange();
+      reportHeight();
+      reportSelection();
+    },
+    setHtml: function (html) {
+      editor.innerHTML = html || '';
+      lastHtml = editor.innerHTML;
+      refreshEmpty();
+      reportChange();
+      reportHeight();
+    },
+    insertHtml: function (html) {
+      editor.focus();
+      try { document.execCommand('insertHTML', false, html); } catch (e) {}
+      reportChange();
+      reportHeight();
+    },
+    insertLink: function (url, label) {
+      editor.focus();
+      // Reject anything that isn't a safe scheme or an absolute path, so the
+      // user can't accidentally (or via a malicious paste) ship a
+      // javascript:/data: link to their recipient. Written without regex
+      // backslash escapes — see the template-cooking warning at the top.
+      var trimmed = (url || '').trim();
+      var first = trimmed.charAt(0);
+      var safeScheme = /^(https?:|mailto:|tel:|sms:)/i.test(trimmed)
+        || first === '/' || first === '?' || first === '#';
+      if (!trimmed || !safeScheme) return;
+      var sel = window.getSelection();
+      var hasSelection = sel && sel.rangeCount && !sel.getRangeAt(0).collapsed;
+      if (hasSelection) {
+        try { document.execCommand('createLink', false, trimmed); } catch (e) {}
+        // execCommand doesn't set rel; tag every anchor that points at this URL.
+        Array.prototype.forEach.call(editor.getElementsByTagName('a'), function (a) {
+          if (a.getAttribute('href') === trimmed) {
+            a.setAttribute('rel', 'noopener noreferrer nofollow');
+          }
+        });
+      } else {
+        var text = label && label.trim() ? label : trimmed;
+        var safe = text.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
+        var safeUrl = trimmed
+          .replace(/&/g, '&amp;')
+          .replace(/"/g, '&quot;')
+          .replace(/</g, '&lt;')
+          .replace(/>/g, '&gt;');
+        var html = '<a href="' + safeUrl + '" rel="noopener noreferrer nofollow">' + safe + '</a>';
+        try { document.execCommand('insertHTML', false, html); } catch (e) {}
+      }
+      reportChange();
+      reportHeight();
+      reportSelection();
+    },
+    unsetLink: function () {
+      editor.focus();
+      try { document.execCommand('unlink', false, null); } catch (e) {}
+      reportChange();
+      reportSelection();
+    },
+    insertImage: function (src, cid, alt) {
+      editor.focus();
+      var safeSrc = (src || '').replace(/"/g, '&quot;');
+      var safeAlt = (alt || '').replace(/&/g, '&amp;').replace(/"/g, '&quot;');
+      var safeCid = cid ? cid.replace(/"/g, '&quot;') : '';
+      var html = '<img src="' + safeSrc + '" alt="' + safeAlt + '"' +
+        (safeCid ? ' data-cid="' + safeCid + '"' : '') + ' />';
+      try { document.execCommand('insertHTML', false, html); } catch (e) {}
+      reportChange();
+      reportHeight();
+    },
+    // Send-time readback (issue #9): RN asks for the live DOM content instead
+    // of trusting the last change message, which can lag typing or be lost
+    // entirely if the bridge breaks. The id lets RN match reply to request.
+    getHtml: function (id) {
+      post('htmlSnapshot', { id: id, html: editor.innerHTML });
+    },
+    focus: function () { editor.focus(); },
+  };
+
+  reportHeight();
+  reportChange();
+
+  // Re-measure after async layout (image loads, font swap).
+  window.addEventListener('load', function () {
+    setTimeout(reportHeight, 50);
+    setTimeout(reportHeight, 200);
+    setTimeout(reportHeight, 600);
+  });
+  if (window.ResizeObserver) {
+    new ResizeObserver(reportHeight).observe(editor);
+  }
+})();
+true;
+</script>
+</body>
+</html>`;
+}

src/lib/login-errors.ts

@@ -0,0 +1,102 @@
+// Sign-in failures reach the UI as raw strings from the JMAP client — "Session
+// discovery failed: 404 Not Found", "Network request failed". Those describe
+// what the code was doing, not what the person should do next. This maps the
+// ones we can recognise onto copy that names a likely cause and an action.
+//
+// Errors are matched by `name` and message text rather than `instanceof` so
+// this module stays free of the api/ and expo dependency graph.
+
+export interface LoginErrorCopy {
+  title: string;
+  detail?: string;
+}
+
+export interface LoginErrorContext {
+  /** Host shown in "can't reach X" copy. */
+  serverUrl?: string | null;
+}
+
+function messageOf(err: unknown): string {
+  return err instanceof Error ? err.message : typeof err === 'string' ? err : '';
+}
+
+function nameOf(err: unknown): string {
+  return err instanceof Error ? err.name : '';
+}
+
+function hostLabel(serverUrl: string | null | undefined): string {
+  if (!serverUrl) return 'the server';
+  const host = serverUrl.replace(/^[a-z][a-z0-9+.-]*:\/\//i, '').split('/')[0];
+  return host || 'the server';
+}
+
+export function describeLoginError(err: unknown, context: LoginErrorContext = {}): LoginErrorCopy {
+  const name = nameOf(err);
+  const message = messageOf(err);
+  const lower = message.toLowerCase();
+  const host = hostLabel(context.serverUrl);
+
+  if (name === 'AuthenticationError' || lower.includes('invalid username or password')) {
+    return {
+      title: "That didn't work",
+      detail:
+        'Check your email and password. If your account uses two-factor sign-in, create an app password in the webmail and use that here.',
+    };
+  }
+
+  if (lower.includes('certificate') || lower.includes('ssl') || lower.includes('tls')) {
+    return {
+      title: `Couldn't verify ${host}`,
+      detail:
+        "The server's security certificate was rejected. If this is your own server, check the certificate is valid and not expired.",
+    };
+  }
+
+  // The endpoint answered, but it isn't a JMAP server — almost always a
+  // mistyped host or a webmail that lives on a subpath.
+  if (lower.includes('session discovery failed') && /\b40[34]\b/.test(message)) {
+    return {
+      title: `No mail server at ${host}`,
+      detail: 'Double-check the address, or scan a sign-in code from the webmail instead.',
+    };
+  }
+
+  if (
+    name === 'NetworkError' ||
+    name === 'TypeError' ||
+    name === 'AbortError' ||
+    lower.includes('network request failed') ||
+    lower.includes('failed to fetch') ||
+    lower.includes('timeout') ||
+    lower.includes('timed out')
+  ) {
+    return {
+      title: `Can't reach ${host}`,
+      detail: 'Check your connection and the server address, then try again.',
+    };
+  }
+
+  if (lower.includes('pairing code')) {
+    return {
+      title: 'That code has expired',
+      detail: 'Sign-in codes are good for a few minutes. Generate a fresh one in the webmail and scan again.',
+    };
+  }
+
+  if (lower.includes('state mismatch')) {
+    return {
+      title: 'Sign-in was interrupted',
+      detail: "The response didn't match the request we started. Try signing in again.",
+    };
+  }
+
+  if (lower.includes('maximum of') && lower.includes('accounts')) {
+    return { title: message };
+  }
+
+  // Unrecognised: show what we were told rather than inventing a cause.
+  return {
+    title: 'Sign-in failed',
+    detail: message || 'Something went wrong. Try again.',
+  };
+}

src/lib/mailbox-tree.ts

@@ -96,3 +96,36 @@ export function flattenVisible(
   walk(nodes);
   return out;
 }
+
+export function findTrashMailbox(mailboxes: Mailbox[]): Mailbox | undefined {
+  const roleMatch = mailboxes.find((m) => m.role === 'trash');
+  if (roleMatch) return roleMatch;
+
+  const names = ['trash', 'bin', 'deleted', 'deleted items', 'corbeille', 'messages supprimés', 'éléments supprimés', 'supprimé', 'supprimés'];
+  return mailboxes.find((m) => {
+    const lower = m.name.toLowerCase();
+    return names.includes(lower) || names.some((n) => lower.includes(n));
+  });
+}
+
+export function findArchiveMailbox(mailboxes: Mailbox[]): Mailbox | undefined {
+  const roleMatch = mailboxes.find((m) => m.role === 'archive');
+  if (roleMatch) return roleMatch;
+
+  const names = ['archive', 'archives', 'archived'];
+  return mailboxes.find((m) => {
+    const lower = m.name.toLowerCase();
+    return names.includes(lower) || names.some((n) => lower.includes(n));
+  });
+}
+
+export function findJunkMailbox(mailboxes: Mailbox[]): Mailbox | undefined {
+  const roleMatch = mailboxes.find((m) => m.role === 'junk' || m.role === 'spam');
+  if (roleMatch) return roleMatch;
+
+  const names = ['junk', 'spam', 'indésirables', 'indésirable', 'courrier indésirable'];
+  return mailboxes.find((m) => {
+    const lower = m.name.toLowerCase();
+    return names.includes(lower) || names.some((n) => lower.includes(n));
+  });
+}

src/lib/oauth.ts

@@ -207,6 +207,8 @@ export async function redeemPairingCode(webmailUrl: string, code: string): Promi
   };
 }
 
+const activeRefreshes = new Map<string, Promise<OAuthTokens>>();
+
 // OAuth refresh — exchanges the refresh token at the original token endpoint
 // for a new access token. Returns the updated bundle so the caller can
 // persist it.
@@ -214,37 +216,52 @@ export async function refreshOAuthAccessToken(tokens: OAuthTokens): Promise<OAut
   if (!tokens.refreshToken) {
     throw new HandoffError('No refresh token available');
   }
-  const body = new URLSearchParams({
-    grant_type: 'refresh_token',
-    refresh_token: tokens.refreshToken,
-    client_id: tokens.clientId,
-  });
-  const response = await secureFetch(tokens.tokenEndpoint, {
-    method: 'POST',
-    headers: {
-      'Content-Type': 'application/x-www-form-urlencoded',
-      Accept: 'application/json',
-    },
-    body: body.toString(),
-  });
-  if (!response.ok) {
-    throw new HandoffError(`Token refresh failed: ${response.status}`);
+
+  const cacheKey = tokens.refreshToken;
+  let promise = activeRefreshes.get(cacheKey);
+
+  if (!promise) {
+    promise = (async () => {
+      try {
+        const body = new URLSearchParams({
+          grant_type: 'refresh_token',
+          refresh_token: tokens.refreshToken!,
+          client_id: tokens.clientId,
+        });
+        const response = await secureFetch(tokens.tokenEndpoint, {
+          method: 'POST',
+          headers: {
+            'Content-Type': 'application/x-www-form-urlencoded',
+            Accept: 'application/json',
+          },
+          body: body.toString(),
+        });
+        if (!response.ok) {
+          throw new HandoffError(`Token refresh failed: ${response.status}`);
+        }
+        const data = (await response.json()) as {
+          access_token?: string;
+          refresh_token?: string;
+          expires_in?: number;
+        };
+        if (!data.access_token) {
+          throw new HandoffError('Token refresh response missing access_token');
+        }
+        return {
+          accessToken: data.access_token,
+          refreshToken: data.refresh_token ?? tokens.refreshToken!,
+          expiresAt: data.expires_in ? Date.now() + data.expires_in * 1000 : undefined,
+          tokenEndpoint: tokens.tokenEndpoint,
+          clientId: tokens.clientId,
+        };
+      } finally {
+        activeRefreshes.delete(cacheKey);
+      }
+    })();
+    activeRefreshes.set(cacheKey, promise);
   }
-  const data = (await response.json()) as {
-    access_token?: string;
-    refresh_token?: string;
-    expires_in?: number;
-  };
-  if (!data.access_token) {
-    throw new HandoffError('Token refresh response missing access_token');
-  }
-  return {
-    accessToken: data.access_token,
-    refreshToken: data.refresh_token ?? tokens.refreshToken,
-    expiresAt: data.expires_in ? Date.now() + data.expires_in * 1000 : undefined,
-    tokenEndpoint: tokens.tokenEndpoint,
-    clientId: tokens.clientId,
-  };
+
+  return promise;
 }
 
 WebBrowser.maybeCompleteAuthSession();

src/lib/platform-capabilities.ts

@@ -0,0 +1,16 @@
+// Single source of truth for "this feature only exists on some platforms", so
+// the UI, the stores and the native bridges all agree on what is reachable.
+
+import { Platform } from 'react-native';
+
+/**
+ * In-app sideload updates: download the release APK from GitHub and hand it to
+ * the system package installer (see `lib/install-update`).
+ *
+ * Android only. App Store Review guideline 2.5.2 forbids an iOS app from
+ * downloading and installing executable code, and there is no iOS equivalent of
+ * the installer intent anyway - iOS builds are updated through TestFlight or
+ * the App Store. The whole updater surface (banner, settings pane, launch-time
+ * check) is hidden when this is false.
+ */
+export const supportsSideloadUpdates = Platform.OS === 'android';

src/lib/push-notifications.ts

@@ -217,6 +217,33 @@ async function registerWithRelay(params: {
   }
 }
 
+/**
+ * Ask the relay whether a leftover subscription is dead. Returns true ONLY when
+ * the relay positively reports it inactive - a record it knows about that has
+ * never forwarded a push and isn't freshly registered. Every other outcome (the
+ * relay doesn't recognise the id, an older relay without this endpoint, a
+ * network blip, or a live subscription) returns false, so we never reap
+ * anything we can't confirm is dead. This is what lets setup clear its own
+ * abandoned attempts - and dead siblings left by reinstalls that regenerated
+ * the deviceClientId - without disturbing another live device or the PWA that
+ * shares the account.
+ */
+async function relayReportsDead(
+  relayBaseUrl: string,
+  subscriptionId: string,
+): Promise<boolean> {
+  try {
+    const res = await fetch(
+      buildRelayUrl(relayBaseUrl, `/api/push/active/${encodeURIComponent(subscriptionId)}`),
+    );
+    if (!res.ok) return false;
+    const body = (await res.json()) as { active?: unknown };
+    return body.active === false;
+  } catch {
+    return false;
+  }
+}
+
 async function pollVerificationCode(
   relayBaseUrl: string,
   subscriptionId: string,
@@ -241,12 +268,36 @@ async function pollVerificationCode(
   throw new Error('Timed out waiting for PushVerification from JMAP server');
 }
 
+// Coalesce concurrent setup attempts per account. App.tsx re-runs its push
+// effect as auth state settles during startup and again on every FCM token
+// refresh; because a failing attempt blocks for up to 75s polling for the
+// verification code, those re-fires overlap. Without this guard each
+// overlapping run mints its OWN deviceClientId and JMAP subscription, and the
+// resulting swarm starves Stalwart's one-PushVerification-per-60s slot so none
+// of them ever verifies (the symptom is a perpetual "Timed out waiting for
+// PushVerification"). Callers share the first in-flight run instead.
+const inFlightSetups = new Map<string, Promise<PushSetupResult>>();
+
 /**
  * Full setup flow: ask permission, fetch the device's FCM token, register
  * with the relay, create a JMAP PushSubscription, poll for the verification
- * code, and finalise the subscription.
+ * code, and finalise the subscription. Concurrent calls for the same account
+ * are coalesced onto a single in-flight run.
  */
-export async function setupPushNotifications(
+export function setupPushNotifications(
+  params: PushSetupParams,
+): Promise<PushSetupResult> {
+  const key = `${jmapClient.username ?? ''}@${jmapClient.serverUrl ?? ''}`;
+  const existing = inFlightSetups.get(key);
+  if (existing) return existing;
+  const run = setupPushNotificationsInner(params).finally(() => {
+    inFlightSetups.delete(key);
+  });
+  inFlightSetups.set(key, run);
+  return run;
+}
+
+async function setupPushNotificationsInner(
   params: PushSetupParams,
 ): Promise<PushSetupResult> {
   const native = getNative();
@@ -306,19 +357,29 @@ export async function setupPushNotifications(
     await AsyncStorage.removeItem(subKey);
   }
 
-  // Reap any leftover Stalwart subscriptions still bound to this account's
-  // deviceClientId. These pile up when a previous enable attempt failed
-  // mid-flow (verify race, network blip, app killed). Stalwart per-account
-  // rate-limits PushVerification posts, so leaving stragglers around blocks
-  // the new one's verification - the symptom is a confusing "code does not
-  // match". Only reap matches for THIS account's deviceClientId; other
-  // accounts' subscriptions on this server (rare but possible if the same
-  // JMAP server backs multiple accounts) must be left alone.
-  const stragglers = existingSubs.filter(
-    (s) => s.deviceClientId === deviceClientId && s.id !== storedServerId,
-  );
-  for (const s of stragglers) {
-    await destroyPushSubscription(s.id).catch(() => undefined);
+  // Reap leftover Stalwart subscriptions that would otherwise starve the new
+  // one's verification. Stalwart emits only one PushVerification per account
+  // per ~60s and picks the oldest unverified subscription, so a single stale
+  // straggler blocks every fresh attempt - the symptom is the confusing
+  // "Timed out waiting for PushVerification" error. We can't read a
+  // subscription's verified state or URL over JMAP (Stalwart hides both), only
+  // its deviceClientId, so we decide what's safe to remove like this:
+  //   - same deviceClientId as ours: a previous attempt from THIS device,
+  //     always safe to reap.
+  //   - a different deviceClientId: could be another live device or the PWA on
+  //     this account. Ask the relay whether it's still alive and only reap the
+  //     ones it confirms are dead. Anything live - or anything the relay can't
+  //     vouch for (a different relay, a non-Bulwark client, a network blip) -
+  //     is left untouched.
+  for (const s of existingSubs) {
+    if (s.id === storedServerId) continue;
+    if (s.deviceClientId === deviceClientId) {
+      await destroyPushSubscription(s.id).catch(() => undefined);
+      continue;
+    }
+    if (await relayReportsDead(relayBaseUrl, s.deviceClientId)) {
+      await destroyPushSubscription(s.id).catch(() => undefined);
+    }
   }
 
   const serverAssignedId = await createPushSubscription({

src/lib/server-discovery.ts

@@ -0,0 +1,170 @@
+// Turn an email address into a JMAP server URL so the sign-in flow doesn't
+// have to open with a "Server URL" field nobody knows the answer to.
+//
+// The probe is deliberately cheap and short-lived: a GET of
+// `<base>/.well-known/jmap` against a handful of conventional hosts, all in
+// parallel, with a hard deadline. Discovery is an optimisation — if it comes
+// back empty the caller falls through to asking for the server by hand, so a
+// slow or hostile network must never be worse than typing it in.
+
+import { secureFetch } from './client-cert';
+
+export const DISCOVERY_TIMEOUT_MS = 2500;
+
+const SCHEME_RE = /^([a-z][a-z0-9+.-]*):\/\//i;
+const EMAIL_RE = /^[^\s@]+@([^\s@]+\.[^\s@]+)$/;
+
+/**
+ * Accept what people actually type — `mail.example.com`, `example.com/`,
+ * `https://mail.example.com/.well-known/jmap` — and return the base URL the
+ * JMAP client expects, or null if it can't be one.
+ */
+export function normalizeServerUrl(input: string): string | null {
+  let value = input.trim();
+  if (!value) return null;
+
+  const scheme = SCHEME_RE.exec(value);
+  if (scheme) {
+    const protocol = scheme[1].toLowerCase();
+    if (protocol !== 'http' && protocol !== 'https') return null;
+    value = `${protocol}://${value.slice(scheme[0].length)}`;
+  } else {
+    value = `https://${value}`;
+  }
+
+  // Someone pasting the endpoint they found in the webmail's settings gets the
+  // same result as someone typing the address they use in the browser.
+  value = value
+    .replace(/\/+$/, '')
+    .replace(/\/\.well-known\/jmap$/i, '')
+    .replace(/\/jmap$/i, '')
+    .replace(/\/+$/, '');
+
+  const host = value.slice(value.indexOf('://') + 3).split('/')[0];
+  if (!host || /[\s@]/.test(host)) return null;
+
+  const hostname = host.split(':')[0].toLowerCase();
+  if (!hostname) return null;
+  if (!hostname.includes('.') && hostname !== 'localhost') return null;
+
+  return value;
+}
+
+export function emailDomain(email: string): string | null {
+  const match = EMAIL_RE.exec(email.trim());
+  return match ? match[1].toLowerCase() : null;
+}
+
+export function isEmailAddress(value: string): boolean {
+  return emailDomain(value) !== null;
+}
+
+function hostOf(url: string): string {
+  return url.slice(url.indexOf('://') + 3).split('/')[0].split(':')[0].toLowerCase();
+}
+
+/**
+ * Hosts worth probing for `domain`, most likely first. The order is also the
+ * tie-break order when several respond.
+ */
+export function serverCandidates(domain: string): string[] {
+  return [`https://${domain}`, `https://mail.${domain}`, `https://webmail.${domain}`];
+}
+
+function withTimeout<T>(promise: Promise<T>, ms: number, fallback: T): Promise<T> {
+  return new Promise<T>((resolve) => {
+    const timer = setTimeout(() => resolve(fallback), ms);
+    promise
+      .then((value) => {
+        clearTimeout(timer);
+        resolve(value);
+      })
+      .catch(() => {
+        clearTimeout(timer);
+        resolve(fallback);
+      });
+  });
+}
+
+function looksLikeSession(body: unknown): boolean {
+  if (!body || typeof body !== 'object') return false;
+  return 'capabilities' in body || 'apiUrl' in body || 'primaryAccounts' in body;
+}
+
+/**
+ * True when `baseUrl` looks like a JMAP server.
+ *
+ * A 401 counts as a hit — an unauthenticated probe of Stalwart's session
+ * endpoint is *supposed* to be rejected, and that rejection is proof the
+ * endpoint is there. A 200, on the other hand, has to actually contain a
+ * session document: a captive portal or a catch-all web server will happily
+ * answer 200 with HTML for any path we ask for.
+ */
+export async function probeJmapServer(
+  baseUrl: string,
+  timeoutMs: number = DISCOVERY_TIMEOUT_MS,
+): Promise<boolean> {
+  const controller = typeof AbortController !== 'undefined' ? new AbortController() : null;
+  const abortTimer = setTimeout(() => controller?.abort(), timeoutMs);
+
+  const request = (async () => {
+    try {
+      const response = await secureFetch(`${baseUrl}/.well-known/jmap`, {
+        headers: { Accept: 'application/json' },
+        signal: controller?.signal,
+      });
+      if (response.status === 401) return true;
+      if (response.status !== 200) return false;
+      return looksLikeSession(await response.json());
+    } catch {
+      return false;
+    }
+  })();
+
+  try {
+    // The abort signal doesn't reach the native client-certificate path, so
+    // race the whole thing rather than trusting the request to give up.
+    return await withTimeout(request, timeoutMs, false);
+  } finally {
+    clearTimeout(abortTimer);
+  }
+}
+
+export interface DiscoveryOptions {
+  /** Servers of already-registered accounts, trusted without a probe. */
+  knownServerUrls?: string[];
+  timeoutMs?: number;
+}
+
+/**
+ * Best guess at the mail server for `email`, or null if nothing answered in
+ * time. Callers treat null as "ask the user".
+ */
+export async function discoverServerForEmail(
+  email: string,
+  options: DiscoveryOptions = {},
+): Promise<string | null> {
+  const domain = emailDomain(email);
+  if (!domain) return null;
+
+  // A server we're already signed in to for this domain needs no probe, and
+  // covers the common case of adding a second account on the same host.
+  const known = (options.knownServerUrls ?? [])
+    .map(normalizeServerUrl)
+    .filter((url): url is string => url !== null);
+  const alreadyKnown = known.find((url) => {
+    const host = hostOf(url);
+    return host === domain || host.endsWith(`.${domain}`);
+  });
+  if (alreadyKnown) return alreadyKnown;
+
+  const timeoutMs = options.timeoutMs ?? DISCOVERY_TIMEOUT_MS;
+  const candidates = serverCandidates(domain);
+  const results = await Promise.all(
+    candidates.map(async (candidate) => ((await probeJmapServer(candidate, timeoutMs)) ? candidate : null)),
+  );
+
+  // `find` keeps candidate order, so a bare domain wins over `mail.` even when
+  // both answer.
+  return results.find((url): url is string => url !== null) ?? null;
+}

src/screens/CalendarScreen.tsx

@@ -163,6 +163,7 @@ export default function CalendarScreen() {
   const toggleCalendarVisibility = useCalendarStore((s) => s.toggleCalendarVisibility);
   const setDefaultCalendar = useCalendarStore((s) => s.setDefaultCalendar);
   const storeCalendars = useCalendarStore((s) => s.calendars);
+  const taskOnlyCalendarIds = useCalendarStore((s) => s.taskOnlyCalendarIds);
   const hiddenCalendarIds = useCalendarStore((s) => s.hiddenCalendarIds);
   const loading = useCalendarStore((s) => s.loading);
   const error = useCalendarStore((s) => s.error);
@@ -218,6 +219,28 @@ export default function CalendarScreen() {
     [storeEvents, birthdayEvents],
   );
 
+  // VTODO-only task lists (Todoist imports, per-project Thunderbird task
+  // lists) are sibling CalDAV collections that Calendar/get returns alongside
+  // event calendars. Their contents surface in the Tasks sheet, so keep them
+  // out of the calendar drawer and out of the event/import calendar pickers —
+  // listing them as calendars just produces duplicate/confusing entries. (#28)
+  const eventCalendars = React.useMemo(() => {
+    if (taskOnlyCalendarIds.length === 0) return allCalendars;
+    const taskOnly = new Set(taskOnlyCalendarIds);
+    return allCalendars.filter((cal) => !taskOnly.has(cal.id));
+  }, [allCalendars, taskOnlyCalendarIds]);
+
+  // The Tasks sheet keeps the full list but with task lists sorted first, so
+  // its create-picker (which defaults to the first writable calendar) targets
+  // a dedicated task list when the account has one.
+  const taskSheetCalendars = React.useMemo(() => {
+    if (taskOnlyCalendarIds.length === 0) return allCalendars;
+    const taskOnly = new Set(taskOnlyCalendarIds);
+    return [...allCalendars].sort(
+      (a, b) => Number(taskOnly.has(b.id)) - Number(taskOnly.has(a.id)),
+    );
+  }, [allCalendars, taskOnlyCalendarIds]);
+
   const calendars = React.useMemo(
     () => allCalendars.filter((c) => !hiddenCalendarIds.includes(c.id)),
     [allCalendars, hiddenCalendarIds],
@@ -521,7 +544,7 @@ export default function CalendarScreen() {
       <EventModal
         visible={modalVisible}
         event={modalEvent}
-        calendars={allCalendars}
+        calendars={eventCalendars}
         defaultDate={modalDate}
         onSave={handleSave}
         onDelete={handleDeleteFromModal}
@@ -537,7 +560,7 @@ export default function CalendarScreen() {
 
       <CalendarSidebarDrawer
         visible={sidebarVisible}
-        calendars={allCalendars}
+        calendars={eventCalendars}
         hiddenCalendarIds={hiddenCalendarIds}
         onToggle={toggleCalendarVisibility}
         onClose={() => setSidebarVisible(false)}
@@ -555,7 +578,7 @@ export default function CalendarScreen() {
       <TasksSheet
         visible={tasksVisible}
         tasks={tasks}
-        calendars={allCalendars}
+        calendars={taskSheetCalendars}
         onClose={() => setTasksVisible(false)}
         onCreate={createTask}
         onToggle={toggleTaskComplete}
@@ -565,8 +588,11 @@ export default function CalendarScreen() {
       <ICalImportSheet
         visible={importVisible}
         // Import batch-creates against the primary account, so only offer the
-        // user's own calendars as targets.
-        calendars={displayCalendars.filter((cal) => !cal.isShared)}
+        // user's own event calendars (no shared calendars, no task lists) as
+        // targets.
+        calendars={eventCalendars.filter(
+          (cal) => !cal.isShared && cal.id !== BIRTHDAY_CALENDAR_ID,
+        )}
         onClose={() => setImportVisible(false)}
         onImport={importEvents}
       />

src/screens/ComposeScreen.tsx

@@ -17,7 +17,7 @@ import * as FileSystem from 'expo-file-system/legacy';
 import { File as FsFile } from 'expo-file-system';
 import { spacing, radius, typography, componentSizes, type ThemePalette } from '../theme/tokens';
 import { useColors } from '../theme/colors';
-import { Button } from '../components';
+import { Button, IdentitySheet } from '../components';
 import RichTextEditor, {
   type RichTextEditorHandle,
   type RichTextSelectionState,
@@ -26,6 +26,7 @@ import { useEmailStore } from '../stores/email-store';
 import { useContactsStore } from '../stores/contacts-store';
 import { useLocaleStore } from '../stores/locale-store';
 import { useSettingsStore } from '../stores/settings-store';
+import { useAccountStore } from '../stores/account-store';
 import { isGroup } from '../lib/contact-utils';
 import {
   getContactDisplayName,
@@ -69,7 +70,16 @@ function parseRecipients(input: string): Recipient[] {
     .split(/[,;\n]/)
     .map((s) => s.trim())
     .filter(Boolean)
-    .map((email) => ({ name: '', email }));
+    .map((s) => {
+      const match = s.match(/^(.*?)\s*<([^\s@]+@[^\s@]+\.[^\s@]+)>$/);
+      if (match) {
+        return {
+          name: match[1].replace(/^["']|["']$/g, '').trim(),
+          email: match[2].trim(),
+        };
+      }
+      return { name: '', email: s };
+    });
 }
 
 function formatBytes(n: number): string {
@@ -113,10 +123,11 @@ function RecipientChip({ recipient, onRemove }: { recipient: Recipient; onRemove
 }
 
 function SuggestionList({
-  suggestions, onPick,
+  suggestions, onPick, onPressIn,
 }: {
   suggestions: Array<{ contact: ContactCard; name: string; email: string }>;
   onPick: (s: { name: string; email: string }) => void;
+  onPressIn?: () => void;
 }) {
   const c = useColors();
   const styles = React.useMemo(() => makeStyles(c), [c]);
@@ -127,6 +138,7 @@ function SuggestionList({
         return (
           <Pressable
             key={`${s.contact.id}-${s.email}-${i}`}
+            onPressIn={onPressIn}
             onPress={() => onPick(s)}
             style={({ pressed }) => [styles.suggestionRow, pressed && styles.suggestionRowPressed]}
           >
@@ -260,6 +272,7 @@ export default function ComposeScreen({ route, navigation }: Props) {
   const [identityError, setIdentityError] = React.useState<string | null>(null);
   const [sending, setSending] = React.useState(false);
   const [selectedIdentityId, setSelectedIdentityId] = React.useState<string | null>(null);
+  const [identitySheetOpen, setIdentitySheetOpen] = React.useState(false);
   const [scheduleSheetOpen, setScheduleSheetOpen] = React.useState(false);
   // Custom date/time picker stage. iOS shows one 'datetime' spinner; Android
   // can only show one field at a time, so we walk date → time.
@@ -343,6 +356,7 @@ export default function ComposeScreen({ route, navigation }: Props) {
   });
 
   const editorRef = React.useRef<RichTextEditorHandle>(null);
+  const isPickingSuggestion = React.useRef(false);
   // Track inline-image placeholders that haven't yet been rewritten to cid:
   // until send time. Maps cid → blobId/type/name/size.
   const inlineRegistryRef = React.useRef<Map<string, AttachmentEntry>>(new Map());
@@ -375,6 +389,7 @@ export default function ComposeScreen({ route, navigation }: Props) {
   }, [suggestionQuery, individuals, alreadySelected]);
 
   const pickSuggestion = (s: { name: string; email: string }) => {
+    isPickingSuggestion.current = true;
     const recipient: Recipient = { name: s.name, email: s.email };
     if (activeField === 'cc') {
       setCcRecipients((prev) => [...prev, recipient]);
@@ -405,34 +420,35 @@ export default function ComposeScreen({ route, navigation }: Props) {
   // original message (matches webmail's reply-identity behaviour).
   React.useEffect(() => {
     if (selectedIdentityId || identities.length === 0) return;
+    const activeEmail = useAccountStore.getState().getActiveAccount()?.email || jmapClient.username;
+    const defaultIdentity = identities.find(
+      (i) => i.email.toLowerCase() === activeEmail?.toLowerCase()
+    ) ?? identities[0];
+
     if (autoSelectReplyIdentity && replyTo) {
       const candidates = [...(replyTo.to ?? []), ...(replyTo.cc ?? [])];
       const candidateAddrs = new Set(
         candidates.map((r) => r.email?.toLowerCase()).filter(Boolean) as string[],
       );
       const matched = identities.find((i) => candidateAddrs.has(i.email.toLowerCase()));
-      setSelectedIdentityId((matched ?? identities[0]).id);
+      setSelectedIdentityId((matched ?? defaultIdentity).id);
     } else {
-      setSelectedIdentityId(identities[0].id);
+      setSelectedIdentityId(defaultIdentity.id);
     }
   }, [identities, autoSelectReplyIdentity, replyTo, selectedIdentityId]);
 
-  const primaryIdentity =
-    identities.find((i) => i.id === selectedIdentityId) ?? identities[0];
+  const primaryIdentity = React.useMemo(() => {
+    if (identities.length === 0) return null;
+    const activeEmail = useAccountStore.getState().getActiveAccount()?.email || jmapClient.username;
+    const defaultIdentity = identities.find(
+      (i) => i.email.toLowerCase() === activeEmail?.toLowerCase()
+    ) ?? identities[0];
+    return identities.find((i) => i.id === selectedIdentityId) ?? defaultIdentity;
+  }, [identities, selectedIdentityId]);
 
   const openIdentityPicker = () => {
     if (identities.length <= 1) return;
-    Alert.alert(
-      t('email_composer.from', 'From'),
-      undefined,
-      [
-        ...identities.map((i) => ({
-          text: i.name ? `${i.name} <${i.email}>` : i.email,
-          onPress: () => setSelectedIdentityId(i.id),
-        })),
-        { text: t('email_composer.cancel', 'Cancel'), style: 'cancel' as const },
-      ],
-    );
+    setIdentitySheetOpen(true);
   };
 
   const commitTyped = () => {
@@ -448,11 +464,33 @@ export default function ComposeScreen({ route, navigation }: Props) {
     const extraTo = parseRecipients(toInput);
     const extraCc = parseRecipients(ccInput);
     if (extraTo.length) {
-      setToRecipients((prev) => [...prev, ...extraTo]);
+      setToRecipients((prev) => {
+        const existing = new Set(prev.map((r) => r.email.toLowerCase()));
+        const unique: Recipient[] = [];
+        for (const r of extraTo) {
+          const emailLower = r.email.toLowerCase();
+          if (!existing.has(emailLower)) {
+            existing.add(emailLower);
+            unique.push(r);
+          }
+        }
+        return [...prev, ...unique];
+      });
       setToInput('');
     }
     if (extraCc.length) {
-      setCcRecipients((prev) => [...prev, ...extraCc]);
+      setCcRecipients((prev) => {
+        const existing = new Set(prev.map((r) => r.email.toLowerCase()));
+        const unique: Recipient[] = [];
+        for (const r of extraCc) {
+          const emailLower = r.email.toLowerCase();
+          if (!existing.has(emailLower)) {
+            existing.add(emailLower);
+            unique.push(r);
+          }
+        }
+        return [...prev, ...unique];
+      });
       setCcInput('');
     }
   };
@@ -720,13 +758,13 @@ export default function ComposeScreen({ route, navigation }: Props) {
   // Catch the classic "I forgot the attachment" footgun. Only file attachments
   // count - inline images don't satisfy the user's intent of attaching a file.
   // Returns true if it's safe to proceed, false if the user cancelled.
-  const passesAttachmentReminder = async (): Promise<boolean> => {
+  const passesAttachmentReminder = async (html: string): Promise<boolean> => {
     if (!attachmentReminderEnabled) return true;
     const hasFileAttachment = attachments.some(
       (a) => !a.inline && a.blobId && !a.error,
     );
     if (hasFileAttachment) return true;
-    const haystack = `${subject}\n${htmlToPlainText(bodyHtml)}`.toLowerCase();
+    const haystack = `${subject}\n${htmlToPlainText(html)}`.toLowerCase();
     const matchedKeyword = attachmentReminderKeywords.find((kw) => {
       const k = kw.trim().toLowerCase();
       if (!k) return false;
@@ -840,12 +878,33 @@ export default function ComposeScreen({ route, navigation }: Props) {
 
   const performSend = async (holdForSeconds?: number, scheduledAt?: Date) => {
     if (!canSend || !primaryIdentity || !sentMailbox) return;
-    if (!(await passesAttachmentReminder())) return;
+
+    // Read the body straight from the editor DOM at send time. The `change`
+    // messages that feed `bodyHtml` are async and best-effort — trusting them
+    // here once shipped replies with the typed text silently missing when the
+    // page script had died (issue #9). If the editor doesn't answer we abort
+    // loudly rather than send possibly-stale content.
+    let liveBodyHtml: string;
+    try {
+      liveBodyHtml = (await editorRef.current?.getHtml()) ?? bodyHtml;
+    } catch {
+      Alert.alert(
+        t('email_composer.send_failed', 'Send failed'),
+        t(
+          'email_composer.editor_unavailable',
+          'Could not read the message content. Copy your text, then close and reopen the composer.',
+        ),
+      );
+      return;
+    }
+    if (liveBodyHtml !== bodyHtml) setBodyHtml(liveBodyHtml);
+
+    if (!(await passesAttachmentReminder(liveBodyHtml))) return;
     setSending(true);
     try {
       const from: EmailAddress[] = [{ name: primaryIdentity.name, email: primaryIdentity.email }];
 
-      const { html: rewrittenHtml, usedCids } = rewriteInlineImages(bodyHtml);
+      const { html: rewrittenHtml, usedCids } = rewriteInlineImages(liveBodyHtml);
       // Belt-and-suspenders sanitization: the editor uses execCommand which
       // can preserve pasted <script>/<style>/etc. Strip them before sending.
       const safeHtml = stripDangerousTags(rewrittenHtml);
@@ -976,7 +1035,7 @@ export default function ComposeScreen({ route, navigation }: Props) {
       <View style={[styles.flex, { paddingBottom: bottomPad }]}>
         <ScrollView
           style={styles.flex}
-          keyboardShouldPersistTaps="handled"
+          keyboardShouldPersistTaps="always"
           contentContainerStyle={styles.scrollContent}
         >
           <View style={styles.fieldRow}>
@@ -993,7 +1052,7 @@ export default function ComposeScreen({ route, navigation }: Props) {
             </Pressable>
           </View>
 
-          <View style={styles.fieldRow}>
+          <View style={[styles.fieldRow, { zIndex: 5 }]}>
             <Text style={styles.fieldLabel}>{t('email_composer.to', 'To')}</Text>
             <View style={styles.recipientField}>
               {toRecipients.map((r, i) => (
@@ -1011,8 +1070,13 @@ export default function ComposeScreen({ route, navigation }: Props) {
                 onChangeText={setToInput}
                 onFocus={() => setActiveField('to')}
                 onBlur={() => {
-                  addTyped();
-                  setTimeout(() => setActiveField((f) => (f === 'to' ? null : f)), 200);
+                  setTimeout(() => {
+                    if (!isPickingSuggestion.current) {
+                      addTyped();
+                    }
+                    setActiveField((f) => (f === 'to' ? null : f));
+                    isPickingSuggestion.current = false;
+                  }, 200);
                 }}
                 onSubmitEditing={addTyped}
                 keyboardType="email-address"
@@ -1021,7 +1085,13 @@ export default function ComposeScreen({ route, navigation }: Props) {
               />
             </View>
             {activeField === 'to' && suggestions.length > 0 && (
-              <SuggestionList suggestions={suggestions} onPick={pickSuggestion} />
+              <SuggestionList
+                suggestions={suggestions}
+                onPick={pickSuggestion}
+                onPressIn={() => {
+                  isPickingSuggestion.current = true;
+                }}
+              />
             )}
             {!ccVisible && (
               <Pressable onPress={() => setCcVisible(true)} style={styles.ccToggle}>
@@ -1031,7 +1101,7 @@ export default function ComposeScreen({ route, navigation }: Props) {
           </View>
 
           {ccVisible && (
-            <View style={styles.fieldRow}>
+            <View style={[styles.fieldRow, { zIndex: 4 }]}>
               <Text style={styles.fieldLabel}>{t('email_composer.cc', 'Cc')}</Text>
               <View style={styles.recipientField}>
                 {ccRecipients.map((r, i) => (
@@ -1049,8 +1119,13 @@ export default function ComposeScreen({ route, navigation }: Props) {
                   onChangeText={setCcInput}
                   onFocus={() => setActiveField('cc')}
                   onBlur={() => {
-                    addTyped();
-                    setTimeout(() => setActiveField((f) => (f === 'cc' ? null : f)), 200);
+                    setTimeout(() => {
+                      if (!isPickingSuggestion.current) {
+                        addTyped();
+                      }
+                      setActiveField((f) => (f === 'cc' ? null : f));
+                      isPickingSuggestion.current = false;
+                    }, 200);
                   }}
                   onSubmitEditing={addTyped}
                   keyboardType="email-address"
@@ -1059,7 +1134,13 @@ export default function ComposeScreen({ route, navigation }: Props) {
                 />
               </View>
               {activeField === 'cc' && suggestions.length > 0 && (
-                <SuggestionList suggestions={suggestions} onPick={pickSuggestion} />
+                <SuggestionList
+                  suggestions={suggestions}
+                  onPick={pickSuggestion}
+                  onPressIn={() => {
+                    isPickingSuggestion.current = true;
+                  }}
+                />
               )}
             </View>
           )}
@@ -1293,6 +1374,14 @@ export default function ComposeScreen({ route, navigation }: Props) {
           onChange={onCustomPickerChange}
         />
       )}
+
+      <IdentitySheet
+        visible={identitySheetOpen}
+        onClose={() => setIdentitySheetOpen(false)}
+        identities={identities}
+        selectedIdentityId={selectedIdentityId}
+        onPick={(identity) => setSelectedIdentityId(identity.id)}
+      />
     </SafeAreaView>
   );
 }
@@ -1332,6 +1421,7 @@ function makeStyles(c: ThemePalette) {
     borderBottomWidth: 1,
     borderBottomColor: c.borderLight,
     gap: spacing.md,
+    position: 'relative',
   },
   fieldLabel: {
     ...typography.body,
@@ -1374,12 +1464,16 @@ function makeStyles(c: ThemePalette) {
     paddingVertical: 6,
   },
   suggestionBox: {
-    marginTop: spacing.xs,
-    marginLeft: 60,
+    position: 'absolute',
+    top: '100%',
+    left: spacing.lg + 56 + spacing.md,
+    right: spacing.lg,
     borderWidth: 1,
     borderColor: c.borderLight,
     borderRadius: radius.sm,
     backgroundColor: c.card,
+    zIndex: 20,
+    elevation: 5,
     overflow: 'hidden',
   },
   suggestionRow: {

src/screens/EmailListScreen.tsx

@@ -24,8 +24,8 @@ import { useSettingsStore, type SwipeAction } from '../stores/settings-store';
 import { useKeywordsStore } from '../stores/keywords-store';
 import { useLocaleStore } from '../stores/locale-store';
 import { formatListDate } from '../lib/date-format';
+import { findTrashMailbox, findArchiveMailbox, findJunkMailbox } from '../lib/mailbox-tree';
 import type { Email } from '../api/types';
-
 function getSenderName(email: Email): string {
   return email.from?.[0]?.name || email.from?.[0]?.email || 'Unknown';
 }
@@ -46,6 +46,9 @@ function isPinned(email: Email): boolean {
   return !!email.keywords?.$important;
 }
 
+// Height of the sender line when the avatar is hidden (extra-compact density),
+// used to anchor the unread dot on that first line.
+const UNREAD_DOT_TEXT_LINE = 20;
 
 const EmailRow = React.memo(function EmailRow({
   item,
@@ -92,6 +95,14 @@ const EmailRow = React.memo(function EmailRow({
       onLongPress={handleLongPress}
       delayLongPress={300}
     >
+      {unread && (
+        <View
+          style={[
+            styles.unreadDot,
+            { top: density.rowPaddingVertical + (density.showAvatar ? componentSizes.avatarMd : UNREAD_DOT_TEXT_LINE) / 2 - 4 },
+          ]}
+        />
+      )}
       {selectionMode && (
         <View style={styles.rowCheckboxWrap}>
           {selected ? (
@@ -164,6 +175,7 @@ interface EmailListScreenProps {
 export default function EmailListScreen({ onEmailPress, onComposePress }: EmailListScreenProps) {
   const c = useColors();
   const styles = React.useMemo(() => makeStyles(c), [c]);
+  const { t } = useLocaleStore();
   const [drawerOpen, setDrawerOpen] = React.useState(false);
   const [filterMenuOpen, setFilterMenuOpen] = React.useState(false);
   const emails = useEmailStore((s) => s.emails);
@@ -232,15 +244,15 @@ export default function EmailListScreen({ onEmailPress, onComposePress }: EmailL
   }, [emails, disableThreading]);
 
   const archiveMailboxId = React.useMemo(
-    () => mailboxes.find((m) => m.role === 'archive')?.id ?? null,
+    () => findArchiveMailbox(mailboxes)?.id ?? null,
     [mailboxes],
   );
   const trashMailboxId = React.useMemo(
-    () => mailboxes.find((m) => m.role === 'trash')?.id ?? null,
+    () => findTrashMailbox(mailboxes)?.id ?? null,
     [mailboxes],
   );
   const junkMailboxId = React.useMemo(
-    () => mailboxes.find((m) => m.role === 'junk' || m.role === 'spam')?.id ?? null,
+    () => findJunkMailbox(mailboxes)?.id ?? null,
     [mailboxes],
   );
 
@@ -336,16 +348,31 @@ export default function EmailListScreen({ onEmailPress, onComposePress }: EmailL
       case 'archive':
         if (archiveMailboxId && currentMailboxId !== archiveMailboxId) {
           void archiveEmailAction(id);
+        } else if (!archiveMailboxId) {
+          Alert.alert(
+            t('email_list.error', 'Error'),
+            t('email_list.no_archive_folder', 'Could not find an Archive folder on the server.'),
+          );
         }
         break;
       case 'delete':
         if (trashMailboxId) {
           void deleteEmailAction(id, trashMailboxId, currentMailboxId);
+        } else {
+          Alert.alert(
+            t('email_list.error', 'Error'),
+            t('email_list.no_trash_folder', 'Could not find a Trash folder on the server. Please check your mailbox configuration.'),
+          );
         }
         break;
       case 'spam':
         if (junkMailboxId && currentMailboxId !== junkMailboxId) {
           void moveToMailboxAction(id, currentMailboxId, junkMailboxId);
+        } else if (!junkMailboxId) {
+          Alert.alert(
+            t('email_list.error', 'Error'),
+            t('email_list.no_junk_folder', 'Could not find a Spam/Junk folder on the server.'),
+          );
         }
         break;
       case 'read':
@@ -365,7 +392,7 @@ export default function EmailListScreen({ onEmailPress, onComposePress }: EmailL
   }, [
     currentMailboxId, archiveMailboxId, trashMailboxId, junkMailboxId,
     moveToMailboxAction, archiveEmailAction, deleteEmailAction,
-    markRead, markUnread, toggleStar, togglePin,
+    markRead, markUnread, toggleStar, togglePin, t,
   ]);
 
   const renderEmailRow = React.useCallback(
@@ -433,7 +460,7 @@ export default function EmailListScreen({ onEmailPress, onComposePress }: EmailL
   };
 
   const handleBulkDelete = async () => {
-    const trash = mailboxes.find((m) => m.role === 'trash');
+    const trash = findTrashMailbox(mailboxes);
     if (!trash || !currentMailboxId) {
       clearSelection();
       return;
@@ -1349,6 +1376,20 @@ function makeStyles(c: ThemePalette) {
   },
   emailRowPressed: { backgroundColor: c.surface },
   emailRowSelected: { backgroundColor: c.selection },
+  // Mirrors the webmail's unread indicator: an 8px filled circle at the row's
+  // start edge, vertically centered (email-list-item.tsx, fill-unread). The
+  // weight/color change alone is too subtle on some device fonts (#27).
+  // `top` is set per row: the dot is anchored on the row's *first* line (top
+  // padding + half an avatar), not on the row's midpoint, which would drop it
+  // a full line below the checkbox and avatar it reads as a column with.
+  unreadDot: {
+    position: 'absolute',
+    left: 4,
+    width: 8,
+    height: 8,
+    borderRadius: 4,
+    backgroundColor: c.unread,
+  },
   rowCheckboxWrap: {
     width: 16,
     height: componentSizes.avatarMd,

src/screens/EmailThreadScreen.tsx

@@ -29,6 +29,8 @@ import { setEmailKeywords } from '../api/email';
 import { shareEmailEml, shareAttachment, downloadAttachment } from '../lib/email-export';
 import { useKeywordsStore, keywordToken, type KeywordDef } from '../stores/keywords-store';
 import { useSheetDrag } from '../lib/use-sheet-drag';
+import { useLocaleStore } from '../stores/locale-store';
+import { findTrashMailbox } from '../lib/mailbox-tree';
 import type { Email, Mailbox } from '../api/types';
 import type { RootStackParamList } from '../navigation/types';
 
@@ -65,6 +67,7 @@ function plainTextBody(email: Email): string {
 export default function EmailThreadScreen({ route, navigation }: Props) {
   const c = useColors();
   const styles = React.useMemo(() => makeStyles(c), [c]);
+  const { t } = useLocaleStore();
   const { jmapAccountId } = route.params;
   // The displayed email is tracked in local state (not a route param) so that
   // swiping / Prev-Next can switch messages in place without remounting the
@@ -299,8 +302,14 @@ export default function EmailThreadScreen({ route, navigation }: Props) {
 
   const onDelete = () => {
     if (!email || !currentMailboxId) return;
-    const trash = mailboxes.find((m) => m.role === 'trash');
-    if (!trash) return;
+    const trash = findTrashMailbox(mailboxes);
+    if (!trash) {
+      Alert.alert(
+        t('email_list.error', 'Error'),
+        t('email_list.no_trash_folder', 'Could not find a Trash folder on the server. Please check your mailbox configuration.'),
+      );
+      return;
+    }
     void deleteEmail(email.id, trash.id, currentMailboxId);
     navigation.goBack();
   };

src/screens/LoginScreen.tsx

@@ -1,16 +1,23 @@
 import React from 'react';
-import { View, Text, Pressable, StyleSheet, KeyboardAvoidingView, Platform, Image, Alert } from 'react-native';
-import { SafeAreaView } from 'react-native-safe-area-context';
-import Constants from 'expo-constants';
-import { Eye, EyeOff, X, QrCode } from 'lucide-react-native';
-import { spacing, radius, typography, componentSizes, type ThemePalette } from '../theme/tokens';
-import { useColors } from '../theme/colors';
-import { Button, Input } from '../components';
+import { BackHandler } from 'react-native';
+import { useAuthStore } from '../stores/auth-store';
+import { useAccountStore } from '../stores/account-store';
 import { QrScanModal } from '../components/QrScanModal';
 import { parseQrLoginPayload } from '../lib/oauth';
-import { useAuthStore } from '../stores/auth-store';
-
-const APP_VERSION = Constants.expoConfig?.version ?? '0.0.0';
+import {
+  discoverServerForEmail,
+  emailDomain,
+  isEmailAddress,
+  normalizeServerUrl,
+} from '../lib/server-discovery';
+import { describeLoginError, type LoginErrorCopy } from '../lib/login-errors';
+import LoginShell from './login/LoginShell';
+import ChooseStep from './login/ChooseStep';
+import EmailStep from './login/EmailStep';
+import ServerStep from './login/ServerStep';
+import ConfirmStep from './login/ConfirmStep';
+import PasswordStep from './login/PasswordStep';
+import SigningInStep, { type SigningInPhase } from './login/SigningInStep';
 
 interface LoginScreenProps {
   onLogin?: () => void;
@@ -18,288 +25,349 @@ interface LoginScreenProps {
   onCancel?: () => void;
 }
 
-export default function LoginScreen({ onLogin, isAddMode, onCancel }: LoginScreenProps) {
-  const c = useColors();
-  const styles = React.useMemo(() => makeStyles(c), [c]);
+type StepName = 'choose' | 'email' | 'server' | 'confirm' | 'password';
+
+/**
+ * Sign-in, one question per screen, cheapest question first.
+ *
+ * The routes that need no server address — a paired QR code, or an email we
+ * can discover a server from — come first; the manual server + password form
+ * is the fallback rather than the greeting. Every step drives one of the
+ * existing auth-store actions, so the credential handling below is unchanged
+ * from the single-form version this replaced.
+ */
+export default function LoginScreen({ onLogin, isAddMode = false, onCancel }: LoginScreenProps) {
   const login = useAuthStore((state) => state.login);
   const loginViaWebmail = useAuthStore((state) => state.loginViaWebmail);
   const loginViaPairing = useAuthStore((state) => state.loginViaPairing);
-  const isLoading = useAuthStore((state) => state.isLoading);
-  const error = useAuthStore((state) => state.error);
   const clearError = useAuthStore((state) => state.clearError);
+  const storeError = useAuthStore((state) => state.error);
 
-  const [serverUrl, setServerUrl] = React.useState('');
+  const accounts = useAccountStore((state) => state.accounts);
+  const activeAccountId = useAccountStore((state) => state.activeAccountId);
+
+  const [step, setStep] = React.useState<StepName>('choose');
+  const [history, setHistory] = React.useState<StepName[]>([]);
   const [email, setEmail] = React.useState('');
+  const [serverInput, setServerInput] = React.useState('');
+  const [serverUrl, setServerUrl] = React.useState('');
   const [password, setPassword] = React.useState('');
-  const [showPassword, setShowPassword] = React.useState(false);
+  const [failedDomain, setFailedDomain] = React.useState<string | null>(null);
+  const [notice, setNotice] = React.useState<LoginErrorCopy | null>(null);
+  const [searching, setSearching] = React.useState(false);
+  const [busy, setBusy] = React.useState<SigningInPhase | null>(null);
   const [scannerVisible, setScannerVisible] = React.useState(false);
 
-  const canSubmit = Boolean(serverUrl.trim() && email.trim() && password);
-  const canHandoff = Boolean(serverUrl.trim());
+  // Servers we already hold credentials for. Discovery trusts these without a
+  // probe, which makes "second account on the same host" instant.
+  const knownServerUrls = React.useMemo(() => accounts.map((a) => a.serverUrl), [accounts]);
+  const knownServerUrl = React.useMemo(() => {
+    const active = accounts.find((a) => a.id === activeAccountId);
+    return active?.serverUrl ?? accounts[0]?.serverUrl ?? null;
+  }, [accounts, activeAccountId]);
 
-  const handleLogin = async () => {
-    if (!canSubmit) {
-      return;
-    }
-
-    try {
-      await login(serverUrl.trim(), email.trim(), password, { addAccount: isAddMode });
-      onLogin?.();
-    } catch {
-      // Store state already contains the user-facing error.
-    }
-  };
-
-  const handleWebmailHandoff = async () => {
-    if (!canHandoff) return;
-    try {
-      const before = useAuthStore.getState().isAuthenticated;
-      await loginViaWebmail(serverUrl.trim(), { addAccount: isAddMode });
-      // loginViaWebmail swallows the "user cancelled the browser" case
-      // silently — only fire the navigation hook when authentication
-      // actually completed.
-      const after = useAuthStore.getState().isAuthenticated;
-      if (after && !before) {
-        onLogin?.();
-      } else if (isAddMode && after) {
-        onLogin?.();
-      }
-    } catch {
-      // Store state already contains the user-facing error.
-    }
-  };
-
-  const handleScanned = async (data: string) => {
-    setScannerVisible(false);
-    const payload = parseQrLoginPayload(data);
-    if (!payload) {
-      Alert.alert('Unrecognized QR code', "That QR code isn't a Bulwark Mail sign-in code.");
-      return;
-    }
-    try {
-      const before = useAuthStore.getState().isAuthenticated;
-      if (payload.kind === 'connect') {
-        // Server-bootstrap QR: fill the field and run the normal browser
-        // handoff so the user still authenticates in the webmail.
-        setServerUrl(payload.webmailUrl);
-        await loginViaWebmail(payload.webmailUrl, { addAccount: isAddMode });
-      } else {
-        // Cross-device pairing QR: redeem the one-time code for tokens, no
-        // browser round-trip needed.
-        await loginViaPairing(payload.webmailUrl, payload.code, { addAccount: isAddMode });
-      }
-      const after = useAuthStore.getState().isAuthenticated;
-      if ((after && !before) || (isAddMode && after)) {
-        onLogin?.();
-      }
-    } catch {
-      // Store state already contains the user-facing error.
-    }
-  };
-
-  const updateField = React.useCallback(
-    (setter: React.Dispatch<React.SetStateAction<string>>) => (value: string) => {
-      if (useAuthStore.getState().error) {
-        clearError();
-      }
-      setter(value);
+  const goTo = React.useCallback(
+    (next: StepName) => {
+      clearError();
+      setNotice(null);
+      setHistory((prev) => [...prev, step]);
+      setStep(next);
     },
-    [clearError],
+    [clearError, step],
   );
 
-  const onChangeServerUrl = React.useMemo(() => updateField(setServerUrl), [updateField]);
-  const onChangeEmail = React.useMemo(() => updateField(setEmail), [updateField]);
-  const onChangePassword = React.useMemo(() => updateField(setPassword), [updateField]);
+  const goBack = React.useCallback(() => {
+    if (history.length === 0) return;
+    clearError();
+    setNotice(null);
+    setStep(history[history.length - 1]);
+    setHistory((prev) => prev.slice(0, -1));
+  }, [clearError, history]);
+
+  // Android hardware back mirrors the on-screen back: one step at a time, and
+  // out of the flow entirely from the first step.
+  React.useEffect(() => {
+    const subscription = BackHandler.addEventListener('hardwareBackPress', () => {
+      if (busy || searching) return true;
+      if (scannerVisible) {
+        setScannerVisible(false);
+        return true;
+      }
+      if (history.length > 0) {
+        goBack();
+        return true;
+      }
+      if (isAddMode && onCancel) {
+        onCancel();
+        return true;
+      }
+      return false;
+    });
+    return () => subscription.remove();
+  }, [busy, searching, scannerVisible, history.length, goBack, isAddMode, onCancel]);
+
+  // ── flows ──────────────────────────────────────────────
+
+  const finishIfSignedIn = React.useCallback(
+    (wasAuthenticated: boolean) => {
+      const isAuthenticated = useAuthStore.getState().isAuthenticated;
+      // In add mode the store was already authenticated before we started, so
+      // the before/after comparison can't be the only signal.
+      if ((isAuthenticated && !wasAuthenticated) || (isAddMode && isAuthenticated)) {
+        onLogin?.();
+        return true;
+      }
+      return false;
+    },
+    [isAddMode, onLogin],
+  );
+
+  const runHandoff = React.useCallback(
+    async (target: string) => {
+      setNotice(null);
+      setBusy('browser');
+      const wasAuthenticated = useAuthStore.getState().isAuthenticated;
+      try {
+        await loginViaWebmail(target, { addAccount: isAddMode });
+        // loginViaWebmail resolves quietly when the user closes the browser —
+        // that's a cancellation, not a failure, so leave them where they were.
+        finishIfSignedIn(wasAuthenticated);
+      } catch (err) {
+        setNotice(describeLoginError(err, { serverUrl: target }));
+      } finally {
+        setBusy(null);
+      }
+    },
+    [finishIfSignedIn, isAddMode, loginViaWebmail],
+  );
+
+  const handleEmailContinue = React.useCallback(async () => {
+    const value = email.trim();
+    if (!isEmailAddress(value)) {
+      setNotice({
+        title: 'Enter a full email address',
+        detail: 'Like ada@example.com. If you sign in with a username instead, use “I know my server address”.',
+      });
+      return;
+    }
+
+    setNotice(null);
+    setSearching(true);
+    try {
+      const found = await discoverServerForEmail(value, { knownServerUrls });
+      if (found) {
+        setServerUrl(found);
+        setServerInput(found);
+        goTo('confirm');
+      } else {
+        setFailedDomain(emailDomain(value));
+        setServerInput('');
+        goTo('server');
+      }
+    } finally {
+      setSearching(false);
+    }
+  }, [email, goTo, knownServerUrls]);
+
+  const handleServerContinue = React.useCallback(() => {
+    const normalized = normalizeServerUrl(serverInput);
+    if (!normalized) {
+      setNotice({
+        title: "That doesn't look like a server address",
+        detail: 'Try the address you use for webmail, like mail.example.com.',
+      });
+      return;
+    }
+    setServerUrl(normalized);
+    goTo('confirm');
+  }, [goTo, serverInput]);
+
+  const handlePasswordSubmit = React.useCallback(async () => {
+    const target = serverUrl || normalizeServerUrl(serverInput);
+    if (!target) {
+      setNotice({ title: 'We need a server address first' });
+      return;
+    }
+    if (!email.trim() || !password) {
+      setNotice({ title: 'Enter your email and password' });
+      return;
+    }
+
+    setNotice(null);
+    setBusy('connecting');
+    const wasAuthenticated = useAuthStore.getState().isAuthenticated;
+    try {
+      await login(target, email.trim(), password, { addAccount: isAddMode });
+      finishIfSignedIn(wasAuthenticated);
+    } catch (err) {
+      setNotice(describeLoginError(err, { serverUrl: target }));
+    } finally {
+      setBusy(null);
+    }
+  }, [email, finishIfSignedIn, isAddMode, login, password, serverInput, serverUrl]);
+
+  const handleScanned = React.useCallback(
+    async (data: string) => {
+      setScannerVisible(false);
+      const payload = parseQrLoginPayload(data);
+      if (!payload) {
+        setNotice({
+          title: "That code isn't a Bulwark sign-in code",
+          detail: 'Open Bulwark on the web, then Settings → Devices to show one.',
+        });
+        return;
+      }
+
+      if (payload.kind === 'connect') {
+        // Server-bootstrap code: it carries the address, the user still
+        // authenticates in the webmail.
+        setServerUrl(payload.webmailUrl);
+        setServerInput(payload.webmailUrl);
+        await runHandoff(payload.webmailUrl);
+        return;
+      }
+
+      // Cross-device pairing code: redeem it for tokens, no browser needed.
+      setNotice(null);
+      setBusy('pairing');
+      const wasAuthenticated = useAuthStore.getState().isAuthenticated;
+      try {
+        await loginViaPairing(payload.webmailUrl, payload.code, { addAccount: isAddMode });
+        finishIfSignedIn(wasAuthenticated);
+      } catch (err) {
+        setNotice(describeLoginError(err, { serverUrl: payload.webmailUrl }));
+      } finally {
+        setBusy(null);
+      }
+    },
+    [finishIfSignedIn, isAddMode, loginViaPairing, runHandoff],
+  );
+
+  // ── render ─────────────────────────────────────────────
+
+  if (busy) {
+    return (
+      <SigningInStep
+        phase={busy}
+        serverUrl={serverUrl || knownServerUrl}
+        email={email.trim() || null}
+      />
+    );
+  }
+
+  const canGoBack = history.length > 0;
+  const shellProps = {
+    onBack: canGoBack ? goBack : undefined,
+    onClose: isAddMode && onCancel ? onCancel : undefined,
+  };
+
+  if (step === 'choose') {
+    // A leftover store error ("Session expired") is the reason some people
+    // land back here, so it belongs on this screen.
+    const chooseNotice = notice ?? (storeError ? { title: storeError } : null);
+    return (
+      <>
+        <LoginShell {...shellProps} centered showFooter>
+          <ChooseStep
+            isAddMode={isAddMode}
+            accounts={accounts}
+            knownServerUrl={isAddMode ? knownServerUrl : null}
+            notice={chooseNotice}
+            onScan={() => setScannerVisible(true)}
+            onUseEmail={() => goTo('email')}
+            onUseKnownServer={() => {
+              if (!knownServerUrl) return;
+              setServerUrl(knownServerUrl);
+              setServerInput(knownServerUrl);
+              goTo('confirm');
+            }}
+            onManualSetup={() => {
+              setFailedDomain(null);
+              goTo('server');
+            }}
+          />
+        </LoginShell>
+        <QrScanModal
+          visible={scannerVisible}
+          onClose={() => setScannerVisible(false)}
+          onScanned={(data) => void handleScanned(data)}
+        />
+      </>
+    );
+  }
 
   return (
-    <SafeAreaView style={styles.container}>
-      {isAddMode && onCancel ? (
-        <Pressable onPress={onCancel} style={styles.cancelButton} hitSlop={10}>
-          <X size={24} color={c.text} />
-        </Pressable>
-      ) : null}
-      <KeyboardAvoidingView
-        behavior={Platform.OS === 'ios' ? 'padding' : undefined}
-        style={styles.keyboardView}
-      >
-        <View style={styles.content}>
-          {/* Logo & Branding */}
-          <View style={styles.branding}>
-            <View style={styles.logoContainer}>
-              <Image
-                source={require('../../assets/logos/Bulwark Logo White.png')}
-                style={styles.logoImage}
-                resizeMode="contain"
-              />
-            </View>
-            <Text style={styles.appName}>{isAddMode ? 'Add account' : 'Bulwark Mail'}</Text>
-            <Text style={styles.tagline}>
-              {isAddMode ? 'Sign in to a second account' : 'Secure. Private. Yours.'}
-            </Text>
-          </View>
+    <>
+      <LoginShell {...shellProps}>
+        {step === 'email' ? (
+          <EmailStep
+            isAddMode={isAddMode}
+            value={email}
+            onChange={(value) => {
+              setNotice(null);
+              setEmail(value);
+            }}
+            onSubmit={() => void handleEmailContinue()}
+            onKnowServer={() => {
+              setFailedDomain(null);
+              goTo('server');
+            }}
+            isSearching={searching}
+            notice={notice}
+          />
+        ) : null}
 
-          {/* Login Form */}
-          <View style={styles.form}>
-            <Input
-              label="Server URL"
-              placeholder="https://mail.example.com"
-              value={serverUrl}
-              onChangeText={onChangeServerUrl}
-              autoCapitalize="none"
-              keyboardType="url"
-              autoCorrect={false}
-            />
+        {step === 'server' ? (
+          <ServerStep
+            value={serverInput}
+            onChange={(value) => {
+              setNotice(null);
+              setServerInput(value);
+            }}
+            onSubmit={handleServerContinue}
+            onScan={() => setScannerVisible(true)}
+            failedDomain={failedDomain}
+            notice={notice}
+          />
+        ) : null}
 
-            <Input
-              label="Email or Username"
-              placeholder="you@example.com"
-              value={email}
-              onChangeText={onChangeEmail}
-              autoCapitalize="none"
-              keyboardType="email-address"
-              autoCorrect={false}
-            />
+        {step === 'confirm' ? (
+          <ConfirmStep
+            serverUrl={serverUrl}
+            onContinue={() => void runHandoff(serverUrl)}
+            onChangeServer={() => {
+              setFailedDomain(null);
+              goTo('server');
+            }}
+            onUsePassword={() => goTo('password')}
+            notice={notice}
+          />
+        ) : null}
 
-            <Input
-              label="Password"
-              placeholder="Enter your password"
-              value={password}
-              onChangeText={onChangePassword}
-              secureTextEntry={!showPassword}
-              onSubmitEditing={() => {
-                void handleLogin();
-              }}
-              rightIcon={
-                <Pressable onPress={() => setShowPassword(!showPassword)}>
-                  {showPassword ? (
-                    <EyeOff size={20} color={c.textMuted} />
-                  ) : (
-                    <Eye size={20} color={c.textMuted} />
-                  )}
-                </Pressable>
-              }
-            />
-
-            <Button
-              variant="default"
-              size="lg"
-              onPress={() => {
-                void handleLogin();
-              }}
-              disabled={!canSubmit}
-              loading={isLoading}
-              style={styles.loginButton}
-            >
-              {isLoading ? 'Signing in...' : 'Sign In'}
-            </Button>
-
-            {error ? <Text style={styles.errorText}>{error}</Text> : null}
-
-            {/* OAuth divider */}
-            <View style={styles.divider}>
-              <View style={styles.dividerLine} />
-              <Text style={styles.dividerText}>or continue with</Text>
-              <View style={styles.dividerLine} />
-            </View>
-
-            {/* Webmail-mediated login */}
-            <View style={styles.oauthRow}>
-              <Button
-                variant="outline"
-                size="md"
-                onPress={() => {
-                  void handleWebmailHandoff();
-                }}
-                disabled={!canHandoff || isLoading}
-              >
-                Sign in via webmail
-              </Button>
-              <Button
-                variant="ghost"
-                size="md"
-                onPress={() => setScannerVisible(true)}
-                disabled={isLoading}
-                icon={<QrCode size={18} color={c.text} />}
-              >
-                Scan QR code
-              </Button>
-            </View>
-          </View>
-
-          {/* Footer */}
-          <View style={styles.footer}>
-            <Text style={styles.footerText}>Bulwark Mobile v{APP_VERSION}</Text>
-            <Text style={styles.footerLink}>Privacy Policy</Text>
-          </View>
-        </View>
-      </KeyboardAvoidingView>
+        {step === 'password' ? (
+          <PasswordStep
+            serverUrl={serverUrl}
+            email={email}
+            password={password}
+            onChangeEmail={(value) => {
+              setNotice(null);
+              setEmail(value);
+            }}
+            onChangePassword={(value) => {
+              setNotice(null);
+              setPassword(value);
+            }}
+            onSubmit={() => void handlePasswordSubmit()}
+            notice={notice}
+          />
+        ) : null}
+      </LoginShell>
 
       <QrScanModal
         visible={scannerVisible}
         onClose={() => setScannerVisible(false)}
-        onScanned={(data) => {
-          void handleScanned(data);
-        }}
+        onScanned={(data) => void handleScanned(data)}
       />
-    </SafeAreaView>
+    </>
   );
 }
-
-function makeStyles(c: ThemePalette) {
-  return StyleSheet.create({
-  container: { flex: 1, backgroundColor: c.background },
-  cancelButton: {
-    position: 'absolute',
-    top: 50,
-    left: 16,
-    zIndex: 10,
-    padding: 8,
-  },
-  keyboardView: { flex: 1 },
-  content: {
-    flex: 1,
-    justifyContent: 'center',
-    paddingHorizontal: spacing.xxl,
-  },
-  branding: { alignItems: 'center', marginBottom: 40 },
-  logoContainer: {
-    width: 80,
-    height: 80,
-    alignItems: 'center',
-    justifyContent: 'center',
-    marginBottom: spacing.lg,
-  },
-  logoImage: {
-    width: 72,
-    height: 72,
-  },
-  appName: { ...typography.h1, color: c.text },
-  tagline: { ...typography.caption, color: c.textMuted, marginTop: spacing.xs },
-
-  form: { gap: spacing.lg },
-
-  loginButton: {
-    marginTop: spacing.sm,
-  },
-  errorText: {
-    ...typography.caption,
-    color: c.error,
-    textAlign: 'center',
-  },
-
-  divider: {
-    flexDirection: 'row',
-    alignItems: 'center',
-    marginVertical: spacing.md,
-    gap: spacing.md,
-  },
-  dividerLine: { flex: 1, height: 1, backgroundColor: c.border },
-  dividerText: { ...typography.caption, color: c.textMuted },
-
-  oauthRow: { gap: spacing.md },
-
-  footer: { alignItems: 'center', marginTop: 40, gap: spacing.xs },
-  footerText: { ...typography.caption, color: c.textMuted },
-  footerLink: { ...typography.caption, color: c.textLink },
-  });
-}

src/screens/SettingsScreen.tsx

@@ -38,6 +38,7 @@ import { LayoutSettings } from '../components/settings/LayoutSettings';
 import { DownloadsSettings } from '../components/settings/DownloadsSettings';
 import { useLocaleStore } from '../stores/locale-store';
 import { useHasCalendar, useHasContacts, useHasFiles } from '../lib/capabilities';
+import { supportsSideloadUpdates } from '../lib/platform-capabilities';
 
 type Tab =
   | 'account' | 'language' | 'notifications'
@@ -138,11 +139,18 @@ const TAB_COMPONENTS: Partial<Record<Tab, React.ComponentType<any>>> = {
   updates: UpdatesSettings,
 };
 
+// Tabs whose feature does not exist on this platform never appear in the list.
+// The "Updates" pane drives the sideload installer, which is Android-only - the
+// current version and build are still shown under "About & Data".
+const AVAILABLE_TABS: TabDef[] = TABS.filter(
+  (t) => t.id !== 'updates' || supportsSideloadUpdates,
+);
+
 function groupTabs() {
   return GROUP_ORDER.map(group => ({
     group,
     label: GROUP_LABELS[group],
-    items: TABS.filter(t => t.group === group),
+    items: AVAILABLE_TABS.filter(t => t.group === group),
   })).filter(g => g.items.length > 0);
 }
 

src/screens/UnifiedInboxScreen.tsx

@@ -96,6 +96,7 @@ export default function UnifiedInboxScreen({ navigation }: Props) {
         onPress={() => onOpen(item)}
         style={({ pressed }) => [styles.row, pressed && styles.rowPressed]}
       >
+        {unread && <View style={styles.unreadDot} />}
         <View style={styles.avatarWrap}>
           <SenderAvatar
             name={senderName(item)}
@@ -219,6 +220,19 @@ function makeStyles(c: ThemePalette) {
       paddingVertical: spacing.md,
     },
     rowPressed: { backgroundColor: c.surfaceHover },
+    // Same unread indicator as the mailbox list (and the webmail): an 8px
+    // filled circle in the start gutter (#27). Anchored on the row's *first*
+    // line — top padding + half an avatar — because centring it on the row
+    // drops it a full line below the avatar it reads as a column with.
+    unreadDot: {
+      position: 'absolute',
+      left: 4,
+      top: spacing.md + componentSizes.avatarMd / 2 - 4,
+      width: 8,
+      height: 8,
+      borderRadius: 4,
+      backgroundColor: c.unread,
+    },
     avatarWrap: { position: 'relative' },
     accountDot: {
       position: 'absolute',

src/screens/login/ChooseStep.tsx

@@ -0,0 +1,184 @@
+import React from 'react';
+import { View, Text, Pressable, StyleSheet, Image } from 'react-native';
+import { QrCode, Mail, Plus, Server } from 'lucide-react-native';
+import { spacing, radius, typography, type ThemePalette } from '../../theme/tokens';
+import { useColors, useResolvedTheme } from '../../theme/colors';
+import type { AccountEntry } from '../../stores/account-store';
+import OptionTile from './OptionTile';
+import LoginNotice from './LoginNotice';
+
+// The white mark disappears on the light palette, so pick per theme. `require`
+// can't take an expression, hence the pair.
+const LOGO_LIGHT = require('../../../assets/logos/Bulwark Logo Dark.png');
+const LOGO_DARK = require('../../../assets/logos/Bulwark Logo White.png');
+
+interface ChooseStepProps {
+  isAddMode: boolean;
+  accounts: AccountEntry[];
+  /** Host of the signed-in account, offered as a shortcut in add mode. */
+  knownServerUrl: string | null;
+  onScan: () => void;
+  onUseEmail: () => void;
+  onUseKnownServer: () => void;
+  onManualSetup: () => void;
+  notice?: { title: string; detail?: string } | null;
+  disabled?: boolean;
+}
+
+function hostOf(url: string): string {
+  return url.replace(/^[a-z][a-z0-9+.-]*:\/\//i, '').split('/')[0];
+}
+
+function initialsOf(account: AccountEntry): string {
+  const source = account.displayName || account.email || account.username;
+  const parts = source.replace(/@.*$/, '').split(/[.\s_-]+/).filter(Boolean);
+  const letters = parts.slice(0, 2).map((part) => part[0]);
+  return (letters.join('') || source[0] || '?').toUpperCase();
+}
+
+/**
+ * The entry point. Leads with the two routes that don't require knowing a
+ * server address; manual setup stays one tap away for people who do.
+ */
+export default function ChooseStep({
+  isAddMode,
+  accounts,
+  knownServerUrl,
+  onScan,
+  onUseEmail,
+  onUseKnownServer,
+  onManualSetup,
+  notice,
+  disabled = false,
+}: ChooseStepProps) {
+  const c = useColors();
+  const theme = useResolvedTheme();
+  const styles = React.useMemo(() => makeStyles(c), [c]);
+
+  return (
+    <View style={styles.root}>
+      {isAddMode ? (
+        <View style={styles.addHeading}>
+          <Text style={styles.title}>Add another account</Text>
+          {accounts.length > 0 ? (
+            <Text style={styles.subtitle}>You&apos;re signed in to these already.</Text>
+          ) : null}
+        </View>
+      ) : (
+        <View style={styles.branding}>
+          <Image
+            source={theme === 'light' ? LOGO_LIGHT : LOGO_DARK}
+            style={styles.logo}
+            resizeMode="contain"
+          />
+          <Text style={styles.appName}>Bulwark Mail</Text>
+          <Text style={styles.tagline}>Secure. Private. Yours.</Text>
+        </View>
+      )}
+
+      {isAddMode && accounts.length > 0 ? (
+        <View style={styles.accountList}>
+          {accounts.map((account) => (
+            <View key={account.id} style={styles.accountRow}>
+              <View style={[styles.avatar, { backgroundColor: account.avatarColor }]}>
+                <Text style={styles.avatarText}>{initialsOf(account)}</Text>
+              </View>
+              <View style={styles.accountText}>
+                <Text style={styles.accountName} numberOfLines={1}>
+                  {account.displayName || account.username}
+                </Text>
+                <Text style={styles.accountEmail} numberOfLines={1}>
+                  {account.email || account.username}
+                </Text>
+              </View>
+            </View>
+          ))}
+        </View>
+      ) : null}
+
+      {notice ? (
+        <View style={styles.notice}>
+          <LoginNotice title={notice.title} detail={notice.detail} />
+        </View>
+      ) : null}
+
+      <View style={styles.options}>
+        {isAddMode && knownServerUrl ? (
+          <OptionTile
+            emphasis="primary"
+            title={`Another account on ${hostOf(knownServerUrl)}`}
+            description="Server already known — no setup needed"
+            renderIcon={(color, size) => <Plus size={size} color={color} />}
+            onPress={onUseKnownServer}
+            disabled={disabled}
+          />
+        ) : (
+          <OptionTile
+            emphasis="primary"
+            title="Scan a sign-in code"
+            description="Already signed in on the web? Fastest way in."
+            renderIcon={(color, size) => <QrCode size={size} color={color} />}
+            onPress={onScan}
+            disabled={disabled}
+          />
+        )}
+
+        <OptionTile
+          title={isAddMode ? 'An account somewhere else' : 'Use my email address'}
+          description="We'll find your mail server"
+          renderIcon={(color, size) => <Mail size={size} color={color} />}
+          onPress={onUseEmail}
+          disabled={disabled}
+        />
+
+        {isAddMode && knownServerUrl ? (
+          <OptionTile
+            title="Scan a sign-in code"
+            renderIcon={(color, size) => <QrCode size={size} color={color} />}
+            onPress={onScan}
+            disabled={disabled}
+          />
+        ) : null}
+      </View>
+
+      <Pressable onPress={onManualSetup} disabled={disabled} hitSlop={8} style={styles.manual}>
+        <Server size={14} color={c.textMuted} />
+        <Text style={styles.manualText}>Enter server details manually</Text>
+      </Pressable>
+    </View>
+  );
+}
+
+function makeStyles(c: ThemePalette) {
+  return StyleSheet.create({
+    root: { gap: spacing.xl },
+    branding: { alignItems: 'center', gap: spacing.xs, marginBottom: spacing.md },
+    logo: { width: 64, height: 64, marginBottom: spacing.sm },
+    appName: { ...typography.h1, color: c.text },
+    tagline: { ...typography.caption, color: c.textMuted },
+
+    addHeading: { gap: spacing.xs },
+    title: { ...typography.h1, color: c.text },
+    subtitle: { ...typography.body, color: c.textSecondary },
+
+    accountList: { gap: spacing.md },
+    accountRow: { flexDirection: 'row', alignItems: 'center', gap: spacing.md },
+    avatar: { width: 36, height: 36, borderRadius: radius.full, alignItems: 'center', justifyContent: 'center' },
+    avatarText: { ...typography.captionMedium, color: '#ffffff' },
+    accountText: { flex: 1 },
+    accountName: { ...typography.bodyMedium, color: c.text },
+    accountEmail: { ...typography.caption, color: c.textMuted },
+
+    notice: { marginTop: -spacing.xs },
+    options: { gap: spacing.md },
+
+    manual: {
+      flexDirection: 'row',
+      alignItems: 'center',
+      justifyContent: 'center',
+      gap: spacing.sm,
+      paddingVertical: spacing.sm,
+    },
+    manualText: { ...typography.body, color: c.textMuted },
+  });
+}

src/screens/login/ConfirmStep.tsx

@@ -0,0 +1,119 @@
+import React from 'react';
+import { View, Text, Pressable, StyleSheet } from 'react-native';
+import { Globe } from 'lucide-react-native';
+import { spacing, radius, typography, type ThemePalette } from '../../theme/tokens';
+import { useColors } from '../../theme/colors';
+import { Button } from '../../components';
+import LoginNotice from './LoginNotice';
+
+interface ConfirmStepProps {
+  serverUrl: string;
+  onContinue: () => void;
+  onChangeServer: () => void;
+  onUsePassword: () => void;
+  notice?: { title: string; detail?: string } | null;
+}
+
+function hostOf(url: string): string {
+  return url.replace(/^[a-z][a-z0-9+.-]*:\/\//i, '').split('/')[0];
+}
+
+/**
+ * Names the server before the browser opens. A sign-in that jumps to a browser
+ * with no warning reads as a bug; saying which server, and why the password
+ * isn't asked for here, turns the detour into the point.
+ */
+export default function ConfirmStep({
+  serverUrl,
+  onContinue,
+  onChangeServer,
+  onUsePassword,
+  notice,
+}: ConfirmStepProps) {
+  const c = useColors();
+  const styles = React.useMemo(() => makeStyles(c), [c]);
+
+  return (
+    <View style={styles.root}>
+      <View style={styles.heading}>
+        <Text style={styles.title}>Found your mail server</Text>
+        <Text style={styles.subtitle}>Next you&apos;ll sign in on your provider&apos;s own page.</Text>
+      </View>
+
+      <View style={styles.card}>
+        <View style={styles.cardIcon}>
+          <Globe size={19} color={c.primary} />
+        </View>
+        <View style={styles.cardText}>
+          <Text style={styles.cardTitle} numberOfLines={1}>
+            {hostOf(serverUrl)}
+          </Text>
+          <View style={styles.cardMetaRow}>
+            <View style={styles.dot} />
+            <Text style={styles.cardMeta}>
+              {serverUrl.startsWith('https://') ? 'JMAP · secure connection' : 'JMAP · unencrypted connection'}
+            </Text>
+          </View>
+        </View>
+      </View>
+
+      <LoginNotice
+        tone="info"
+        title="Your password stays with your provider"
+        detail="You'll type it on their page, not into this app. Bulwark keeps a token it can revoke."
+      />
+
+      {notice ? <LoginNotice title={notice.title} detail={notice.detail} /> : null}
+
+      <Button variant="default" size="lg" onPress={onContinue}>
+        Continue
+      </Button>
+
+      <View style={styles.links}>
+        <Pressable onPress={onUsePassword} hitSlop={8}>
+          <Text style={styles.link}>Sign in with a password instead</Text>
+        </Pressable>
+        <Pressable onPress={onChangeServer} hitSlop={8}>
+          <Text style={styles.linkMuted}>Use a different server</Text>
+        </Pressable>
+      </View>
+    </View>
+  );
+}
+
+function makeStyles(c: ThemePalette) {
+  return StyleSheet.create({
+    root: { gap: spacing.lg },
+    heading: { gap: spacing.sm },
+    title: { ...typography.h1, color: c.text },
+    subtitle: { ...typography.body, color: c.textSecondary },
+
+    card: {
+      flexDirection: 'row',
+      alignItems: 'center',
+      gap: spacing.md,
+      borderWidth: 1,
+      borderColor: c.border,
+      backgroundColor: c.surface,
+      borderRadius: radius.lg,
+      padding: spacing.lg,
+    },
+    cardIcon: {
+      width: 38,
+      height: 38,
+      borderRadius: radius.md,
+      backgroundColor: c.primaryBg,
+      alignItems: 'center',
+      justifyContent: 'center',
+    },
+    cardText: { flex: 1, gap: 2 },
+    cardTitle: { ...typography.baseMedium, color: c.text },
+    cardMetaRow: { flexDirection: 'row', alignItems: 'center', gap: spacing.xs },
+    dot: { width: 5, height: 5, borderRadius: radius.full, backgroundColor: c.success },
+    cardMeta: { ...typography.caption, color: c.textSecondary },
+
+    links: { alignItems: 'center', gap: spacing.md, paddingVertical: spacing.xs },
+    link: { ...typography.body, color: c.textLink },
+    linkMuted: { ...typography.body, color: c.textMuted },
+  });
+}

src/screens/login/EmailStep.tsx

@@ -0,0 +1,87 @@
+import React from 'react';
+import { View, Text, Pressable, StyleSheet } from 'react-native';
+import { Mail } from 'lucide-react-native';
+import { spacing, typography, type ThemePalette } from '../../theme/tokens';
+import { useColors } from '../../theme/colors';
+import { Button, Input } from '../../components';
+import LoginNotice from './LoginNotice';
+
+interface EmailStepProps {
+  isAddMode: boolean;
+  value: string;
+  onChange: (value: string) => void;
+  onSubmit: () => void;
+  onKnowServer: () => void;
+  isSearching: boolean;
+  notice?: { title: string; detail?: string } | null;
+}
+
+/**
+ * One field, keyboard already up. The button stays enabled and validates on
+ * press, so nobody is left guessing which field disabled it.
+ */
+export default function EmailStep({
+  isAddMode,
+  value,
+  onChange,
+  onSubmit,
+  onKnowServer,
+  isSearching,
+  notice,
+}: EmailStepProps) {
+  const c = useColors();
+  const styles = React.useMemo(() => makeStyles(c), [c]);
+
+  return (
+    <View style={styles.root}>
+      <View style={styles.heading}>
+        <Text style={styles.title}>
+          {isAddMode ? "What's the other address?" : "What's your email address?"}
+        </Text>
+        <Text style={styles.subtitle}>
+          That&apos;s usually all we need — we&apos;ll look up the mail server for you.
+        </Text>
+      </View>
+
+      <Input
+        placeholder="you@example.com"
+        value={value}
+        onChangeText={onChange}
+        autoFocus
+        autoCapitalize="none"
+        autoCorrect={false}
+        autoComplete="email"
+        textContentType="username"
+        keyboardType="email-address"
+        returnKeyType="go"
+        editable={!isSearching}
+        onSubmitEditing={onSubmit}
+        leftIcon={<Mail size={17} color={c.textMuted} />}
+      />
+
+      <Text style={styles.hint}>Works with Bulwark, Stalwart, and any JMAP mail server.</Text>
+
+      {notice ? <LoginNotice title={notice.title} detail={notice.detail} /> : null}
+
+      <Button variant="default" size="lg" onPress={onSubmit} loading={isSearching}>
+        {isSearching ? 'Looking up your server…' : 'Continue'}
+      </Button>
+
+      <Pressable onPress={onKnowServer} disabled={isSearching} hitSlop={8} style={styles.link}>
+        <Text style={styles.linkText}>I know my server address</Text>
+      </Pressable>
+    </View>
+  );
+}
+
+function makeStyles(c: ThemePalette) {
+  return StyleSheet.create({
+    root: { gap: spacing.lg },
+    heading: { gap: spacing.sm },
+    title: { ...typography.h1, color: c.text },
+    subtitle: { ...typography.body, color: c.textSecondary },
+    hint: { ...typography.caption, color: c.textMuted, marginTop: -spacing.sm },
+    link: { alignItems: 'center', paddingVertical: spacing.sm },
+    linkText: { ...typography.body, color: c.textMuted },
+  });
+}

src/screens/login/LoginNotice.tsx

@@ -0,0 +1,52 @@
+import React from 'react';
+import { View, Text, StyleSheet } from 'react-native';
+import { AlertTriangle, Lock } from 'lucide-react-native';
+import { spacing, radius, typography, type ThemePalette } from '../../theme/tokens';
+import { useColors } from '../../theme/colors';
+
+interface LoginNoticeProps {
+  title: string;
+  detail?: string;
+  tone?: 'error' | 'info';
+}
+
+/** Inline banner for a sign-in failure, or a reassurance about where a
+ *  password ends up. Errors lead with what went wrong, then what to do. */
+export default function LoginNotice({ title, detail, tone = 'error' }: LoginNoticeProps) {
+  const c = useColors();
+  const styles = React.useMemo(() => makeStyles(c), [c]);
+  const isError = tone === 'error';
+  const Icon = isError ? AlertTriangle : Lock;
+
+  return (
+    <View
+      style={[styles.banner, isError ? styles.bannerError : styles.bannerInfo]}
+      accessibilityLiveRegion={isError ? 'polite' : 'none'}
+    >
+      <Icon size={16} color={isError ? c.error : c.textMuted} style={styles.icon} />
+      <View style={styles.text}>
+        <Text style={[styles.title, isError ? styles.titleError : styles.titleInfo]}>{title}</Text>
+        {detail ? <Text style={styles.detail}>{detail}</Text> : null}
+      </View>
+    </View>
+  );
+}
+
+function makeStyles(c: ThemePalette) {
+  return StyleSheet.create({
+    banner: {
+      flexDirection: 'row',
+      gap: spacing.sm,
+      borderRadius: radius.md,
+      padding: spacing.md,
+    },
+    bannerError: { backgroundColor: c.errorBg, borderWidth: 1, borderColor: c.errorBorder },
+    bannerInfo: { backgroundColor: 'transparent', paddingHorizontal: 0 },
+    icon: { marginTop: 1 },
+    text: { flex: 1, gap: 2 },
+    title: { ...typography.captionMedium },
+    titleError: { color: c.error },
+    titleInfo: { color: c.textSecondary },
+    detail: { ...typography.caption, color: c.textSecondary, lineHeight: 17 },
+  });
+}

src/screens/login/LoginShell.tsx

@@ -0,0 +1,107 @@
+import React from 'react';
+import {
+  View,
+  Text,
+  Pressable,
+  ScrollView,
+  StyleSheet,
+  KeyboardAvoidingView,
+  Platform,
+} from 'react-native';
+import { SafeAreaView } from 'react-native-safe-area-context';
+import Constants from 'expo-constants';
+import { ArrowLeft, X } from 'lucide-react-native';
+import { spacing, typography, type ThemePalette } from '../../theme/tokens';
+import { useColors } from '../../theme/colors';
+
+const APP_VERSION = Constants.expoConfig?.version ?? '0.0.0';
+
+interface LoginShellProps {
+  children: React.ReactNode;
+  /** Renders a back chevron. Omit on the first step of the flow. */
+  onBack?: () => void;
+  /** Renders a close X on the right — add-account mode only. */
+  onClose?: () => void;
+  /** Vertically centres the content instead of stacking from the top. */
+  centered?: boolean;
+  showFooter?: boolean;
+}
+
+/**
+ * Shared chrome for every sign-in step: safe area, keyboard avoidance, the
+ * back/close affordances, and the version footer. Steps supply only their own
+ * content so they all sit on the same grid.
+ */
+export default function LoginShell({
+  children,
+  onBack,
+  onClose,
+  centered = false,
+  showFooter = false,
+}: LoginShellProps) {
+  const c = useColors();
+  const styles = React.useMemo(() => makeStyles(c), [c]);
+
+  return (
+    <SafeAreaView style={styles.container}>
+      <KeyboardAvoidingView
+        behavior={Platform.OS === 'ios' ? 'padding' : undefined}
+        style={styles.flex}
+      >
+        <View style={styles.header}>
+          {onBack ? (
+            <Pressable onPress={onBack} hitSlop={12} style={styles.headerButton}>
+              <ArrowLeft size={22} color={c.textSecondary} />
+            </Pressable>
+          ) : (
+            <View style={styles.headerButton} />
+          )}
+          {onClose ? (
+            <Pressable onPress={onClose} hitSlop={12} style={styles.headerButton}>
+              <X size={22} color={c.textSecondary} />
+            </Pressable>
+          ) : (
+            <View style={styles.headerButton} />
+          )}
+        </View>
+
+        <ScrollView
+          style={styles.flex}
+          contentContainerStyle={[styles.content, centered && styles.contentCentered]}
+          keyboardShouldPersistTaps="handled"
+          showsVerticalScrollIndicator={false}
+        >
+          {children}
+        </ScrollView>
+
+        {showFooter ? (
+          <View style={styles.footer}>
+            <Text style={styles.footerText}>Bulwark Mobile v{APP_VERSION}</Text>
+          </View>
+        ) : null}
+      </KeyboardAvoidingView>
+    </SafeAreaView>
+  );
+}
+
+function makeStyles(c: ThemePalette) {
+  return StyleSheet.create({
+    container: { flex: 1, backgroundColor: c.background },
+    flex: { flex: 1 },
+    header: {
+      flexDirection: 'row',
+      alignItems: 'center',
+      justifyContent: 'space-between',
+      paddingHorizontal: spacing.lg,
+      height: 44,
+    },
+    headerButton: { width: 32, height: 32, alignItems: 'center', justifyContent: 'center' },
+    content: {
+      paddingHorizontal: spacing.xxl,
+      paddingBottom: spacing.xxxl,
+    },
+    contentCentered: { flexGrow: 1, justifyContent: 'center' },
+    footer: { alignItems: 'center', paddingBottom: spacing.lg, gap: spacing.xs },
+    footerText: { ...typography.caption, color: c.textMuted },
+  });
+}

src/screens/login/OptionTile.tsx

@@ -0,0 +1,91 @@
+import React from 'react';
+import { View, Text, Pressable, StyleSheet } from 'react-native';
+import { ChevronRight } from 'lucide-react-native';
+import { spacing, radius, typography, type ThemePalette } from '../../theme/tokens';
+import { useColors } from '../../theme/colors';
+
+interface OptionTileProps {
+  title: string;
+  description?: string;
+  /** Receives the colour the tile's text renders in. */
+  renderIcon: (color: string, size: number) => React.ReactNode;
+  onPress: () => void;
+  emphasis?: 'primary' | 'default';
+  disabled?: boolean;
+}
+
+/**
+ * A full-width choice on the sign-in screen: icon, what it does, and what it
+ * costs you. Used instead of a stack of buttons so each route can say enough
+ * to be picked without trial and error.
+ */
+export default function OptionTile({
+  title,
+  description,
+  renderIcon,
+  onPress,
+  emphasis = 'default',
+  disabled = false,
+}: OptionTileProps) {
+  const c = useColors();
+  const styles = React.useMemo(() => makeStyles(c), [c]);
+  const isPrimary = emphasis === 'primary';
+  const contentColor = isPrimary ? c.primaryForeground : c.text;
+
+  return (
+    <Pressable
+      onPress={onPress}
+      disabled={disabled}
+      accessibilityRole="button"
+      accessibilityLabel={description ? `${title}. ${description}` : title}
+      style={({ pressed }) => [
+        styles.tile,
+        isPrimary ? styles.tilePrimary : styles.tileDefault,
+        pressed && !disabled && (isPrimary ? styles.pressedPrimary : styles.pressedDefault),
+        disabled && styles.disabled,
+      ]}
+    >
+      <View style={styles.icon}>{renderIcon(contentColor, 22)}</View>
+      <View style={styles.text}>
+        <Text style={[styles.title, { color: contentColor }]}>{title}</Text>
+        {description ? (
+          <Text
+            style={[
+              styles.description,
+              { color: isPrimary ? c.primaryForeground : c.textSecondary },
+              isPrimary && styles.descriptionPrimary,
+            ]}
+          >
+            {description}
+          </Text>
+        ) : null}
+      </View>
+      <ChevronRight size={18} color={contentColor} style={styles.chevron} />
+    </Pressable>
+  );
+}
+
+function makeStyles(c: ThemePalette) {
+  return StyleSheet.create({
+    tile: {
+      flexDirection: 'row',
+      alignItems: 'center',
+      gap: spacing.md,
+      borderRadius: radius.lg,
+      paddingHorizontal: spacing.lg,
+      paddingVertical: spacing.lg,
+      borderWidth: 1,
+    },
+    tileDefault: { backgroundColor: c.surface, borderColor: c.border },
+    tilePrimary: { backgroundColor: c.primary, borderColor: c.primary },
+    pressedDefault: { backgroundColor: c.surfaceHover },
+    pressedPrimary: { backgroundColor: c.primaryDark },
+    disabled: { opacity: 0.5 },
+    icon: { width: 22, alignItems: 'center' },
+    text: { flex: 1, gap: 2 },
+    title: { ...typography.baseMedium },
+    description: { ...typography.caption },
+    descriptionPrimary: { opacity: 0.8 },
+    chevron: { opacity: 0.5 },
+  });
+}

src/screens/login/PasswordStep.tsx

@@ -0,0 +1,98 @@
+import React from 'react';
+import { View, Text, Pressable, StyleSheet } from 'react-native';
+import { Eye, EyeOff } from 'lucide-react-native';
+import { spacing, typography, type ThemePalette } from '../../theme/tokens';
+import { useColors } from '../../theme/colors';
+import { Button, Input } from '../../components';
+import LoginNotice from './LoginNotice';
+
+interface PasswordStepProps {
+  serverUrl: string;
+  email: string;
+  password: string;
+  onChangeEmail: (value: string) => void;
+  onChangePassword: (value: string) => void;
+  onSubmit: () => void;
+  notice?: { title: string; detail?: string } | null;
+}
+
+function hostOf(url: string): string {
+  return url.replace(/^[a-z][a-z0-9+.-]*:\/\//i, '').split('/')[0];
+}
+
+/** The fallback for servers without the browser hand-off — and the only step
+ *  where a password is typed into the app. */
+export default function PasswordStep({
+  serverUrl,
+  email,
+  password,
+  onChangeEmail,
+  onChangePassword,
+  onSubmit,
+  notice,
+}: PasswordStepProps) {
+  const c = useColors();
+  const styles = React.useMemo(() => makeStyles(c), [c]);
+  const [showPassword, setShowPassword] = React.useState(false);
+
+  return (
+    <View style={styles.root}>
+      <View style={styles.heading}>
+        <Text style={styles.title}>Sign in to {hostOf(serverUrl)}</Text>
+        <Text style={styles.subtitle}>
+          Your password is sent to this server only, and stored in the device keychain.
+        </Text>
+      </View>
+
+      <Input
+        label="Email or username"
+        placeholder="you@example.com"
+        value={email}
+        onChangeText={onChangeEmail}
+        autoCapitalize="none"
+        autoCorrect={false}
+        autoComplete="email"
+        textContentType="username"
+        keyboardType="email-address"
+      />
+
+      <Input
+        label="Password"
+        placeholder="Enter your password"
+        value={password}
+        onChangeText={onChangePassword}
+        autoFocus={Boolean(email)}
+        secureTextEntry={!showPassword}
+        autoComplete="current-password"
+        textContentType="password"
+        returnKeyType="go"
+        onSubmitEditing={onSubmit}
+        rightIcon={
+          <Pressable
+            onPress={() => setShowPassword((v) => !v)}
+            hitSlop={8}
+            accessibilityRole="button"
+            accessibilityLabel={showPassword ? 'Hide password' : 'Show password'}
+          >
+            {showPassword ? <EyeOff size={20} color={c.textMuted} /> : <Eye size={20} color={c.textMuted} />}
+          </Pressable>
+        }
+      />
+
+      {notice ? <LoginNotice title={notice.title} detail={notice.detail} /> : null}
+
+      <Button variant="default" size="lg" onPress={onSubmit}>
+        Sign in
+      </Button>
+    </View>
+  );
+}
+
+function makeStyles(c: ThemePalette) {
+  return StyleSheet.create({
+    root: { gap: spacing.lg },
+    heading: { gap: spacing.sm },
+    title: { ...typography.h1, color: c.text },
+    subtitle: { ...typography.body, color: c.textSecondary },
+  });
+}

src/screens/login/ServerStep.tsx

@@ -0,0 +1,88 @@
+import React from 'react';
+import { View, Text, Pressable, StyleSheet } from 'react-native';
+import { Globe, QrCode } from 'lucide-react-native';
+import { spacing, typography, type ThemePalette } from '../../theme/tokens';
+import { useColors } from '../../theme/colors';
+import { Button, Input } from '../../components';
+import LoginNotice from './LoginNotice';
+
+interface ServerStepProps {
+  value: string;
+  onChange: (value: string) => void;
+  onSubmit: () => void;
+  onScan: () => void;
+  /** Set when we got here because discovery came back empty for this domain. */
+  failedDomain?: string | null;
+  notice?: { title: string; detail?: string } | null;
+}
+
+/**
+ * Asks for the address people actually know — the one they type in the browser
+ * to reach their webmail — not the JMAP session endpoint. The scheme and the
+ * `/.well-known/jmap` suffix are our problem, not theirs.
+ */
+export default function ServerStep({
+  value,
+  onChange,
+  onSubmit,
+  onScan,
+  failedDomain,
+  notice,
+}: ServerStepProps) {
+  const c = useColors();
+  const styles = React.useMemo(() => makeStyles(c), [c]);
+
+  return (
+    <View style={styles.root}>
+      <View style={styles.heading}>
+        <Text style={styles.title}>Where does your mail live?</Text>
+        <Text style={styles.subtitle}>
+          {failedDomain
+            ? `We couldn't find a server for ${failedDomain}. If you self-host, the address is the one you use for webmail.`
+            : 'Enter the address you use to reach your webmail.'}
+        </Text>
+      </View>
+
+      <Input
+        label="Server address"
+        placeholder="mail.example.com"
+        value={value}
+        onChangeText={onChange}
+        autoFocus
+        autoCapitalize="none"
+        autoCorrect={false}
+        keyboardType="url"
+        returnKeyType="go"
+        onSubmitEditing={onSubmit}
+        leftIcon={<Globe size={17} color={c.textMuted} />}
+      />
+
+      <Text style={styles.hint}>Same address you type in the browser. We&apos;ll add https:// for you.</Text>
+
+      {notice ? <LoginNotice title={notice.title} detail={notice.detail} /> : null}
+
+      <Button variant="default" size="lg" onPress={onSubmit}>
+        Continue
+      </Button>
+
+      <Pressable onPress={onScan} hitSlop={8} style={styles.scanRow}>
+        <QrCode size={15} color={c.textMuted} />
+        <Text style={styles.scanText}>
+          Not sure? Scan a sign-in code instead — it carries the address with it.
+        </Text>
+      </Pressable>
+    </View>
+  );
+}
+
+function makeStyles(c: ThemePalette) {
+  return StyleSheet.create({
+    root: { gap: spacing.lg },
+    heading: { gap: spacing.sm },
+    title: { ...typography.h1, color: c.text },
+    subtitle: { ...typography.body, color: c.textSecondary },
+    hint: { ...typography.caption, color: c.textMuted, marginTop: -spacing.sm },
+    scanRow: { flexDirection: 'row', alignItems: 'flex-start', gap: spacing.sm, paddingVertical: spacing.sm },
+    scanText: { ...typography.caption, color: c.textMuted, flex: 1, lineHeight: 17 },
+  });
+}

src/screens/login/SigningInStep.tsx

@@ -0,0 +1,102 @@
+import React from 'react';
+import { View, Text, StyleSheet, ActivityIndicator, Image } from 'react-native';
+import { SafeAreaView } from 'react-native-safe-area-context';
+import { spacing, radius, typography, type ThemePalette } from '../../theme/tokens';
+import { useColors, useResolvedTheme } from '../../theme/colors';
+
+// The white mark disappears on the light palette, so pick per theme.
+const LOGO_LIGHT = require('../../../assets/logos/Bulwark Logo Dark.png');
+const LOGO_DARK = require('../../../assets/logos/Bulwark Logo White.png');
+
+export type SigningInPhase = 'browser' | 'connecting' | 'pairing';
+
+interface SigningInStepProps {
+  phase: SigningInPhase;
+  serverUrl: string | null;
+  email: string | null;
+}
+
+function hostOf(url: string | null): string {
+  if (!url) return 'your server';
+  return url.replace(/^[a-z][a-z0-9+.-]*:\/\//i, '').split('/')[0];
+}
+
+function initialsOf(email: string): string {
+  const local = email.replace(/@.*$/, '');
+  const parts = local.split(/[.\s_-]+/).filter(Boolean);
+  const letters = parts.slice(0, 2).map((part) => part[0]);
+  return (letters.join('') || local[0] || '?').toUpperCase();
+}
+
+/**
+ * Covers the wait while a sign-in is in flight. Naming the server and the
+ * current stage makes a slow first connection legible instead of a bare
+ * spinner that could mean anything.
+ */
+export default function SigningInStep({ phase, serverUrl, email }: SigningInStepProps) {
+  const c = useColors();
+  const theme = useResolvedTheme();
+  const styles = React.useMemo(() => makeStyles(c), [c]);
+  const host = hostOf(serverUrl);
+
+  const copy: Record<SigningInPhase, { title: string; detail: string }> = {
+    browser: {
+      title: `Opening ${host}`,
+      detail: 'Finish signing in on the page that just opened. We’ll take it from there.',
+    },
+    connecting: { title: `Connecting to ${host}`, detail: 'Setting up your mailbox…' },
+    pairing: { title: 'Redeeming your sign-in code', detail: `Pairing this device with ${host}…` },
+  };
+
+  return (
+    <SafeAreaView style={styles.container}>
+      <View style={styles.content}>
+        {email ? (
+          <View style={styles.avatar}>
+            <Text style={styles.avatarText}>{initialsOf(email)}</Text>
+          </View>
+        ) : (
+          <Image
+            source={theme === 'light' ? LOGO_LIGHT : LOGO_DARK}
+            style={styles.logo}
+            resizeMode="contain"
+          />
+        )}
+
+        {email ? <Text style={styles.email}>{email}</Text> : null}
+        <Text style={styles.title}>{copy[phase].title}</Text>
+        <Text style={styles.detail}>{copy[phase].detail}</Text>
+
+        <ActivityIndicator size="small" color={c.primary} style={styles.spinner} />
+      </View>
+    </SafeAreaView>
+  );
+}
+
+function makeStyles(c: ThemePalette) {
+  return StyleSheet.create({
+    container: { flex: 1, backgroundColor: c.background },
+    content: {
+      flex: 1,
+      alignItems: 'center',
+      justifyContent: 'center',
+      paddingHorizontal: spacing.xxl,
+      gap: spacing.xs,
+    },
+    avatar: {
+      width: 60,
+      height: 60,
+      borderRadius: radius.full,
+      backgroundColor: c.primary,
+      alignItems: 'center',
+      justifyContent: 'center',
+      marginBottom: spacing.md,
+    },
+    avatarText: { ...typography.h2, color: c.primaryForeground },
+    logo: { width: 60, height: 60, marginBottom: spacing.md },
+    email: { ...typography.caption, color: c.textMuted },
+    title: { ...typography.h2, color: c.text, textAlign: 'center' },
+    detail: { ...typography.body, color: c.textSecondary, textAlign: 'center' },
+    spinner: { marginTop: spacing.xl },
+  });
+}

src/stores/__tests__/calendar-store.test.ts

@@ -45,6 +45,8 @@ beforeEach(() => {
   useCalendarStore.setState({
     calendars: [],
     events: [],
+    tasks: [],
+    taskOnlyCalendarIds: [],
     hiddenCalendarIds: [],
     loadedRange: null,
     loading: false,
@@ -129,6 +131,77 @@ describe('calendar-store', () => {
       expect(stored[0].originalId).toBe('ev1');
       expect(stored[0].accountId).toBe('acc-2');
     });
+
+    it('classifies calendars whose contents are all Tasks as task lists (#28)', async () => {
+      // VTODO-only CalDAV collections (Todoist imports, Thunderbird task
+      // lists) must be flagged so the drawer can keep them out of the
+      // calendar list. Mixed calendars, calendars with start-less Events,
+      // and empty calendars all stay ordinary calendars.
+      mockQueryEvents.mockResolvedValue(['t1', 'e1', 't2', 'startless']);
+      mockGetEvents.mockResolvedValue([
+        { id: 't1', '@type': 'Task', title: 'Buy milk', calendarIds: { 'cal-tasks': true } },
+        { id: 'e1', '@type': 'Event', start: '2026-03-15T10:00:00', calendarIds: { 'cal-mixed': true } },
+        { id: 't2', '@type': 'Task', title: 'Ship it', calendarIds: { 'cal-mixed': true } },
+        { id: 'startless', '@type': 'Event', calendarIds: { 'cal-startless': true } },
+      ]);
+
+      await useCalendarStore.getState().fetchEvents(
+        ['cal-tasks', 'cal-mixed', 'cal-startless', 'cal-empty'],
+        '2026-03-01',
+        '2026-03-31',
+      );
+
+      expect(useCalendarStore.getState().taskOnlyCalendarIds).toEqual(['cal-tasks']);
+      expect(useCalendarStore.getState().tasks.map((t) => t.id)).toEqual(['t1', 't2']);
+    });
+
+    it('reclassifies task lists on refetch instead of accumulating stale ids', async () => {
+      useCalendarStore.setState({ taskOnlyCalendarIds: ['cal-old'] });
+      mockQueryEvents.mockResolvedValue(['e1']);
+      mockGetEvents.mockResolvedValue([
+        { id: 'e1', '@type': 'Event', start: '2026-03-15T10:00:00', calendarIds: { 'cal-old': true } },
+      ]);
+
+      await useCalendarStore.getState().fetchEvents(['cal-old'], '2026-03-01', '2026-03-31');
+
+      expect(useCalendarStore.getState().taskOnlyCalendarIds).toEqual([]);
+    });
+
+    it('routes queries by account when own and shared calendars share a raw id', async () => {
+      // The user's own "default" calendar and a family group's "default"
+      // calendar collide on the raw JMAP id. The shared one is namespaced
+      // (`acc-2:default`, originalId "default"); the query must use the raw id
+      // against acc-2, and the returned event's calendarIds must be remapped to
+      // the namespaced store id so it isn't hidden with the personal calendar.
+      useCalendarStore.setState({
+        calendars: [
+          { id: 'default', name: 'Personal' } as any,
+          { id: 'acc-2:default', originalId: 'default', name: 'Family', accountId: 'acc-2', isShared: true } as any,
+        ],
+      });
+      const queried: Record<string, string[]> = {};
+      mockQueryEvents.mockImplementation(async (ids: string[], _a: string, _b: string, accountId?: string) => {
+        queried[accountId ?? 'primary'] = ids;
+        return accountId === 'acc-2' ? ['fam1'] : [];
+      });
+      mockGetEvents.mockImplementation(async (_ids: string[], accountId?: string) =>
+        accountId === 'acc-2'
+          ? [{ id: 'fam1', title: 'Soccer', start: '2026-03-20T15:00:00', calendarIds: { default: true } }]
+          : [],
+      );
+
+      await useCalendarStore.getState().fetchEvents(['default', 'acc-2:default'], '2026-03-01', '2026-03-31');
+
+      // The shared account is queried with the raw calendar id, not the prefix.
+      expect(queried['acc-2']).toEqual(['default']);
+      const ev = useCalendarStore.getState().events[0];
+      expect(ev.calendarIds).toEqual({ 'acc-2:default': true });
+
+      // Hiding the personal "default" must not hide the family event.
+      useCalendarStore.setState({ hiddenCalendarIds: ['default'] });
+      const visible = selectVisibleEvents(useCalendarStore.getState());
+      expect(visible.map((e) => e.id)).toContain('acc-2:fam1');
+    });
   });
 
   describe('ensureRange', () => {

src/stores/__tests__/email-store.test.ts

@@ -111,6 +111,7 @@ import { useEmailStore } from '../email-store';
 
 const mockGetMailboxesWithState = emailApi.getMailboxesWithState as ReturnType<typeof vi.fn>;
 const mockQueryEmails = emailApi.queryEmails as ReturnType<typeof vi.fn>;
+const mockGetEmailQueryChanges = emailApi.getEmailQueryChanges as ReturnType<typeof vi.fn>;
 const mockGetEmails = emailApi.getEmails as ReturnType<typeof vi.fn>;
 const mockGetEmailsWithState = emailApi.getEmailsWithState as ReturnType<typeof vi.fn>;
 const mockGetFullEmail = emailApi.getFullEmail as ReturnType<typeof vi.fn>;
@@ -313,6 +314,149 @@ describe('email-store', () => {
     });
   });
 
+  // Issue #6: the "Unread" tri-state filter must reach Email/query as a
+  // notKeyword condition and force the full re-query path (the incremental
+  // path only serves the unfiltered base view).
+  describe('filters (issue #6)', () => {
+    it('applies the unread filter to the mailbox query', async () => {
+      useEmailStore.setState({
+        currentMailboxId: 'mb-1',
+        emails: [],
+        totalEmails: 0,
+        searchQuery: '',
+        filters: { isUnread: true },
+        mailboxSnapshots: {
+          'mb-1': { emails: [{ id: 'e9' } as any], total: 1, queryState: 'q-base' },
+        },
+      });
+      mockQueryEmails.mockResolvedValue({ ids: ['e1'], total: 1, queryState: 'q-unread' });
+      mockGetEmailsWithState.mockResolvedValue({ list: [{ id: 'e1' } as any], state: 'em-1' });
+
+      await useEmailStore.getState().refreshEmails();
+
+      expect(mockGetEmailQueryChanges).not.toHaveBeenCalled();
+      const [mailboxId, opts] = mockQueryEmails.mock.calls[0];
+      expect(mailboxId).toBe('mb-1');
+      expect(opts.filter).toEqual({
+        operator: 'AND',
+        conditions: [{ inMailbox: 'mb-1' }, { notKeyword: '$seen' }],
+      });
+      // Filter results must not leak into the base-view snapshot.
+      expect(useEmailStore.getState().mailboxSnapshots['mb-1'].emails).toEqual([{ id: 'e9' }]);
+    });
+  });
+
+  // Issue #10: after searching, the inbox stayed stuck on the search results.
+  // Root cause: the incremental Email/queryChanges refresh diffed against the
+  // on-screen list (search results) instead of the cached base view, then
+  // wrote the result back into the persisted mailbox snapshot.
+  describe('search / return to inbox (issue #10)', () => {
+    const base = [
+      { id: 'e1', subject: 'One' } as any,
+      { id: 'e2', subject: 'Two' } as any,
+    ];
+
+    it('incremental refresh diffs against the snapshot, not on-screen search results', async () => {
+      // Screen still shows a (stale) search-result list, but searchQuery is
+      // already '' — the cold-start / just-cleared-search shape.
+      useEmailStore.setState({
+        currentMailboxId: 'mb-1',
+        emails: [base[1]],
+        totalEmails: 1,
+        searchQuery: '',
+        filters: {},
+        mailboxSnapshots: { 'mb-1': { emails: base, total: 2, queryState: 'q-base' } },
+      });
+      mockGetEmailQueryChanges.mockResolvedValue({
+        oldQueryState: 'q-base',
+        newQueryState: 'q-2',
+        total: 2,
+        removed: [],
+        added: [],
+      });
+
+      await useEmailStore.getState().refreshEmails();
+
+      const state = useEmailStore.getState();
+      expect(state.emails).toEqual(base);
+      expect(state.mailboxSnapshots['mb-1'].emails).toEqual(base);
+      expect(mockQueryEmails).not.toHaveBeenCalled();
+    });
+
+    it('does not write search results into the mailbox snapshot', async () => {
+      useEmailStore.setState({
+        currentMailboxId: 'mb-1',
+        emails: base,
+        totalEmails: 2,
+        searchQuery: 'two',
+        filters: {},
+        queryState: 'q-base',
+        mailboxSnapshots: { 'mb-1': { emails: base, total: 2, queryState: 'q-base' } },
+      });
+      mockQueryEmails.mockResolvedValue({ ids: ['e2'], total: 1, queryState: 'q-search' });
+      mockGetEmailsWithState.mockResolvedValue({ list: [base[1]], state: 'em-1' });
+
+      await useEmailStore.getState().refreshEmails();
+
+      const state = useEmailStore.getState();
+      expect(state.emails).toEqual([base[1]]);
+      // Base-view cache must survive the search untouched.
+      expect(state.mailboxSnapshots['mb-1'].emails).toEqual(base);
+      expect(state.queryState).toBe('q-base');
+      expect(mockGetEmailQueryChanges).not.toHaveBeenCalled();
+    });
+
+    it('clearSearchAndFilters restores the cached base view immediately', () => {
+      useEmailStore.setState({
+        currentMailboxId: 'mb-1',
+        emails: [base[1]],
+        totalEmails: 1,
+        searchQuery: 'two',
+        filters: {},
+        mailboxSnapshots: { 'mb-1': { emails: base, total: 2, queryState: 'q-base' } },
+      });
+      mockGetEmailQueryChanges.mockResolvedValue({
+        oldQueryState: 'q-base',
+        newQueryState: 'q-2',
+        total: 2,
+        removed: [],
+        added: [],
+      });
+
+      useEmailStore.getState().clearSearchAndFilters();
+
+      // Synchronously back on the base view — no waiting for the network.
+      const state = useEmailStore.getState();
+      expect(state.searchQuery).toBe('');
+      expect(state.emails).toEqual(base);
+      expect(state.totalEmails).toBe(2);
+    });
+
+    it('falls back to a full re-query when the snapshot window is incomplete', async () => {
+      // A pre-fix install could have a poisoned snapshot: a handful of search
+      // results stored against the base view's total. It can't be patched
+      // incrementally — the refresh must rebuild it from the server.
+      useEmailStore.setState({
+        currentMailboxId: 'mb-1',
+        emails: [base[1]],
+        totalEmails: 1,
+        searchQuery: '',
+        filters: {},
+        mailboxSnapshots: { 'mb-1': { emails: [base[1]], total: 50, queryState: 'q-base' } },
+      });
+      mockQueryEmails.mockResolvedValue({ ids: ['e1', 'e2'], total: 50, queryState: 'q-new' });
+      mockGetEmailsWithState.mockResolvedValue({ list: base, state: 'em-2' });
+
+      await useEmailStore.getState().refreshEmails();
+
+      const state = useEmailStore.getState();
+      expect(mockGetEmailQueryChanges).not.toHaveBeenCalled();
+      expect(state.emails).toEqual(base);
+      expect(state.mailboxSnapshots['mb-1'].emails).toEqual(base);
+      expect(state.mailboxSnapshots['mb-1'].queryState).toBe('q-new');
+    });
+  });
+
   describe('getEmailDetail', () => {
     it('should fetch full email', async () => {
       const fullEmail = { id: 'e1', subject: 'Test', bodyValues: { html: { value: '<p>Hi</p>' } } };

src/stores/calendar-store.ts

@@ -25,6 +25,37 @@ function hasSchedulingParticipants(event?: Partial<CalendarEvent> | null): boole
 
 const HIDDEN_CALENDARS_STORAGE_KEY = 'webmail:calendar:hidden:v1';
 
+// Map a server CalendarEvent onto its store representation. For events from a
+// shared/group account the JMAP id is only unique within that account, so we
+// namespace `id` (stashing the real id in originalId) and remap the event's
+// `calendarIds` from raw server ids onto the namespaced store calendar ids so
+// visibility filtering and per-calendar colour lookup line up. Events from the
+// primary account are returned unchanged. Mirrors webmail's
+// mapServerEventToStoreEvent.
+function mapServerEventToStoreEvent(
+  event: CalendarEvent,
+  calendars: Calendar[],
+  accountId?: string,
+): CalendarEvent {
+  if (!accountId) return event;
+  const mapped: Record<string, boolean> = {};
+  for (const [calId, included] of Object.entries(event.calendarIds || {})) {
+    const cal = calendars.find(
+      (c) => (c.originalId || c.id) === calId && c.accountId === accountId,
+    );
+    mapped[cal?.id || calId] = included;
+  }
+  return {
+    ...event,
+    id: `${accountId}:${event.id}`,
+    originalId: event.id,
+    originalCalendarIds: event.calendarIds,
+    calendarIds: Object.keys(mapped).length > 0 ? mapped : event.calendarIds,
+    accountId,
+    isShared: true,
+  };
+}
+
 export interface LoadedRange {
   after: string;
   before: string;
@@ -34,6 +65,12 @@ export interface CalendarState {
   calendars: Calendar[];
   events: CalendarEvent[];
   tasks: CalendarEvent[];
+  // Store ids of calendars that hold only Task objects (VTODO-only CalDAV
+  // collections, e.g. Thunderbird/Todoist task lists). JMAP Calendar/get
+  // doesn't expose the CalDAV supported-calendar-component-set, so the
+  // collection kind is inferred from contents: ≥1 task and no events.
+  // Empty calendars are treated as ordinary event calendars. (#28)
+  taskOnlyCalendarIds: string[];
   hiddenCalendarIds: string[];
   loadedRange: LoadedRange | null;
   loading: boolean;
@@ -93,6 +130,7 @@ export const useCalendarStore = create<CalendarState>()(
   calendars: [],
   events: [],
   tasks: [],
+  taskOnlyCalendarIds: [],
   hiddenCalendarIds: [],
   loadedRange: null,
   loading: false,
@@ -135,14 +173,20 @@ export const useCalendarStore = create<CalendarState>()(
     try {
       // Group the requested calendars by owning account: the primary account
       // (calendars without an accountId tag) plus one group per shared
-      // account, since CalendarEvent/query is scoped to a single account.
+      // account, since CalendarEvent/query is scoped to a single account. The
+      // incoming ids are store ids (shared calendars are namespaced
+      // `${accountId}:${id}`); map them back to the raw server ids the query
+      // filter expects.
       const calendars = get().calendars;
+      const byId = new Map(calendars.map((c) => [c.id, c]));
       const groups = new Map<string | undefined, string[]>();
       for (const id of calendarIds) {
-        const accountId = calendars.find((c) => c.id === id)?.accountId;
+        const cal = byId.get(id);
+        const accountId = cal?.accountId;
+        const serverId = cal?.originalId || id;
         const group = groups.get(accountId);
-        if (group) group.push(id);
-        else groups.set(accountId, [id]);
+        if (group) group.push(serverId);
+        else groups.set(accountId, [serverId]);
       }
       if (groups.size === 0) groups.set(undefined, []);
 
@@ -152,17 +196,7 @@ export const useCalendarStore = create<CalendarState>()(
           const eventIds = (await queryEvents(ids, after, before, accountId)) ?? [];
           if (eventIds.length === 0) continue;
           const fetched = (await fetchEvents(eventIds, accountId)) ?? [];
-          // Shared/group accounts: JMAP object ids are only unique *within* an
-          // account, so two accounts can return events with the same id.
-          // Namespace shared ids with the owning accountId (stashing the real id
-          // in originalId for mutations) so they don't collide with the user's
-          // own events in the store / React keys. Mirrors webmail's
-          // mapServerEventToStoreEvent.
-          raw.push(
-            ...(accountId
-              ? fetched.map((e) => ({ ...e, accountId, id: `${accountId}:${e.id}`, originalId: e.id }))
-              : fetched),
-          );
+          raw.push(...fetched.map((e) => mapServerEventToStoreEvent(e, calendars, accountId)));
         } catch (err) {
           // A failing shared account must not hide the user's own events.
           if (!accountId) throw err;
@@ -176,8 +210,23 @@ export const useCalendarStore = create<CalendarState>()(
         return (t === 'Event' || t === undefined) && !!e.start;
       });
       const tasks = raw.filter((e) => (e as { '@type'?: string })['@type'] === 'Task');
+      // Classify VTODO-only task lists from the full (undated) object set:
+      // a calendar counts as a task list when every object in it is a Task.
+      // Anything that isn't a Task — including start-less Events — keeps the
+      // calendar in the ordinary event-calendar bucket.
+      const eventCalendarIds = new Set<string>();
+      const taskCalendarIds = new Set<string>();
+      for (const obj of raw) {
+        const isTask = (obj as { '@type'?: string })['@type'] === 'Task';
+        for (const calId of Object.keys(obj.calendarIds || {})) {
+          (isTask ? taskCalendarIds : eventCalendarIds).add(calId);
+        }
+      }
+      const taskOnlyCalendarIds = [...taskCalendarIds].filter(
+        (calId) => !eventCalendarIds.has(calId),
+      );
       const events = expandRecurringEvents(onlyEvents, after, before);
-      set({ events, tasks, loadedRange: { after, before }, loading: false });
+      set({ events, tasks, taskOnlyCalendarIds, loadedRange: { after, before }, loading: false });
     } catch (err) {
       set({ loading: false, error: err instanceof Error ? err.message : 'Failed to load events' });
     }
@@ -235,20 +284,22 @@ export const useCalendarStore = create<CalendarState>()(
   },
 
   createEvent: async (event, calendarId) => {
-    // Shared calendars live in the owner's account — route the create there.
-    const accountId = get().calendars.find((c) => c.id === calendarId)?.accountId;
+    // Shared calendars live in the owner's account — route the create there,
+    // and against the calendar's raw server id (calendarId is the namespaced
+    // store id for shared calendars).
+    const calendars = get().calendars;
+    const cal = calendars.find((c) => c.id === calendarId);
+    const accountId = cal?.accountId;
     const created = await apiCreateEvent(
       event,
-      calendarId,
+      cal?.originalId || calendarId,
       hasSchedulingParticipants(event) ? true : undefined,
       accountId,
     );
-    // Namespace shared/group event ids the same way fetchEvents does so the
-    // optimistic insert doesn't collide with the user's own events.
-    const storeCreated = accountId
-      ? { ...created, accountId, id: `${accountId}:${created.id}`, originalId: created.id }
-      : created;
-    set({ events: [...get().events, storeCreated] });
+    // Map the same way fetchEvents does so the optimistic insert doesn't
+    // collide with the user's own events and stays visible under the right
+    // calendar filter.
+    set({ events: [...get().events, mapServerEventToStoreEvent(created, calendars, accountId)] });
     return created;
   },
 
@@ -300,20 +351,26 @@ export const useCalendarStore = create<CalendarState>()(
 
   importEvents: async (events, calendarId) => {
     if (events.length === 0) return 0;
+    // Shared calendars live in the owner's account and carry a namespaced
+    // store id — resolve the raw server id + owning account so dedup and
+    // create target the right place.
+    const cal = get().calendars.find((c) => c.id === calendarId);
+    const accountId = cal?.accountId;
+    const serverCalendarId = cal?.originalId || calendarId;
     // Stalwart enforces UID uniqueness across calendars. Skip events whose UID
     // already exists; create the rest. (We don't attempt cross-calendar linking
     // on mobile — a duplicate is simply skipped.)
     let toCreate = events;
     try {
-      const existingIds = await queryEvents([], '', '');
-      const existing = existingIds.length > 0 ? await fetchEvents(existingIds) : [];
+      const existingIds = await queryEvents([], '', '', accountId);
+      const existing = existingIds.length > 0 ? await fetchEvents(existingIds, accountId) : [];
       const seenUids = new Set(existing.map((e) => e.uid).filter(Boolean) as string[]);
       toCreate = events.filter((e) => !e.uid || !seenUids.has(e.uid));
     } catch {
       // Couldn't dedupe — proceed and let the server reject genuine dupes.
     }
     if (toCreate.length === 0) return 0;
-    const count = await apiBatchCreateEvents(toCreate, calendarId);
+    const count = await apiBatchCreateEvents(toCreate, serverCalendarId, accountId);
     await get().refresh();
     return count;
   },
@@ -326,7 +383,7 @@ export const useCalendarStore = create<CalendarState>()(
 
   setDefaultCalendar: async (id) => {
     const cal = get().calendars.find((c) => c.id === id);
-    await apiSetDefaultCalendar(id, cal?.accountId);
+    await apiSetDefaultCalendar(cal?.originalId || id, cal?.accountId);
     set({
       calendars: get().calendars.map((c) => {
         if (c.id === id) return { ...c, isDefault: true };
@@ -341,8 +398,13 @@ export const useCalendarStore = create<CalendarState>()(
   },
 
   createTask: async (task, calendarId) => {
-    const accountId = get().calendars.find((c) => c.id === calendarId)?.accountId;
-    await apiCreateEvent({ ...task, '@type': 'Task' }, calendarId, undefined, accountId);
+    const cal = get().calendars.find((c) => c.id === calendarId);
+    await apiCreateEvent(
+      { ...task, '@type': 'Task' },
+      cal?.originalId || calendarId,
+      undefined,
+      cal?.accountId,
+    );
     await get().refresh();
   },
 
@@ -394,6 +456,7 @@ export const useCalendarStore = create<CalendarState>()(
     calendars: [],
     events: [],
     tasks: [],
+    taskOnlyCalendarIds: [],
     loadedRange: null,
     loading: false,
     error: null,
@@ -409,6 +472,7 @@ export const useCalendarStore = create<CalendarState>()(
         calendars: state.calendars,
         events: state.events,
         tasks: state.tasks,
+        taskOnlyCalendarIds: state.taskOnlyCalendarIds,
         loadedRange: state.loadedRange,
       }),
     },

src/stores/email-store.ts

@@ -223,6 +223,17 @@ function isBaseView(searchQuery: string, filters: EmailFilters): boolean {
   return !searchQuery.trim() && Object.keys(filters).length === 0;
 }
 
+// View fields to apply when returning from a search/filter to the base view:
+// the cached base-view snapshot, shown immediately so the list doesn't keep
+// displaying search results while the refresh is in flight (issue #10).
+function restoredBaseView(state: EmailState): Partial<EmailState> {
+  const snap = state.currentMailboxId
+    ? state.mailboxSnapshots[state.currentMailboxId]
+    : undefined;
+  if (!snap) return {};
+  return { emails: snap.emails, totalEmails: snap.total, queryState: snap.queryState };
+}
+
 function snapshotFromActive(state: EmailState): AccountSnapshot {
   // Persist the currently-visible mailbox into its snapshot before tucking
   // the whole account away.
@@ -642,7 +653,7 @@ export const useEmailStore = create<EmailState>()(
 
   refreshEmails: async () => {
     const state = get();
-    const { currentMailboxId, searchQuery, filters, emails: existing, queryState, emailState, activeAccountId } = state;
+    const { currentMailboxId, searchQuery, filters, emails: existing, emailState, activeAccountId } = state;
     if (!currentMailboxId) return;
     if (!jmapClientServesActiveAccount(activeAccountId)) return;
     set({ loading: true, error: null });
@@ -651,13 +662,37 @@ export const useEmailStore = create<EmailState>()(
     const limit = useSettingsStore.getState().emailsPerPage;
     const baseView = isBaseView(searchQuery, filters);
 
+    // A response that lands after the user switched account/mailbox or
+    // changed search/filters must not overwrite the newer view.
+    const viewChanged = () =>
+      get().activeAccountId !== activeAccountId ||
+      get().currentMailboxId !== currentMailboxId ||
+      get().searchQuery !== searchQuery ||
+      get().filters !== filters;
+
+    // The incremental path diffs against the *base-view* list, which lives in
+    // the per-mailbox snapshot — NOT `emails`, which may still hold search or
+    // filter results (right after clearing a search, or after a cold start
+    // that rehydrated a persisted search-result list). Diffing against a
+    // non-base list lets Email/queryChanges "confirm" the search results as
+    // the whole mailbox and bakes them into the snapshot (issue #10). The
+    // snapshot is only trusted when its window is plausibly complete —
+    // anything shorter can't be patched incrementally and needs the full
+    // re-query below to rebuild it.
+    const snap = state.mailboxSnapshots[currentMailboxId];
+
     try {
       // Incremental sync path: requires the base unfiltered view AND a known
       // queryState (so Email/queryChanges has something to diff against).
       // Anything else — search, filter active, first-ever load — falls
       // through to a full re-query.
-      if (baseView && queryState) {
-        const queryChanges = await getEmailQueryChanges(currentMailboxId, queryState, {
+      if (
+        baseView &&
+        snap?.queryState &&
+        snap.emails.length >= Math.min(limit, snap.total)
+      ) {
+        const baseEmails = snap.emails;
+        const queryChanges = await getEmailQueryChanges(currentMailboxId, snap.queryState, {
           filter: undefined,
         });
         if (queryChanges) {
@@ -687,9 +722,9 @@ export const useEmailStore = create<EmailState>()(
           }
 
           // Fetch only what we don't already have. `addedIds` are new to the
-          // window; `updatedIds` may already be in `existing` but their
+          // window; `updatedIds` may already be in the base list but their
           // keywords/mailboxIds need refreshing.
-          const existingById = new Map(existing.map((e) => [e.id, e]));
+          const existingById = new Map(baseEmails.map((e) => [e.id, e]));
           const idsToFetch = [
             ...addedIds.filter((id) => !existingById.has(id)),
             ...updatedIds.filter((id) => existingById.has(id)),
@@ -705,7 +740,7 @@ export const useEmailStore = create<EmailState>()(
           // Rebuild the visible window order: start with existing emails,
           // drop removed/destroyed, then splice added at their indices.
           const allDestroyed = new Set([...destroyedExtra, ...removed]);
-          const kept = existing.filter((e) => !allDestroyed.has(e.id));
+          const kept = baseEmails.filter((e) => !allDestroyed.has(e.id));
           // Map updated entries onto kept array
           const fetchedById = new Map(fetched.map((e) => [e.id, e]));
           const updatedKept = kept.map((e) => fetchedById.get(e.id) ?? e);
@@ -727,7 +762,7 @@ export const useEmailStore = create<EmailState>()(
           const nextQueryState = queryChanges.newQueryState;
           const nextTotal = queryChanges.total;
 
-          if (get().activeAccountId !== activeAccountId || get().currentMailboxId !== currentMailboxId) return;
+          if (viewChanged()) return;
 
           set({
             emails: trimmed,
@@ -758,7 +793,7 @@ export const useEmailStore = create<EmailState>()(
         ? await getEmailsWithState(queryRes.ids)
         : { list: [], state: undefined as string | undefined };
 
-      if (get().currentMailboxId !== currentMailboxId) return;
+      if (viewChanged()) return;
 
       const updates: Partial<EmailState> = {
         emails: fetched.list,
@@ -836,19 +871,31 @@ export const useEmailStore = create<EmailState>()(
   },
 
   setSearchQuery: (query) => {
-    set({ searchQuery: query });
+    const state = get();
+    const backToBase =
+      !isBaseView(state.searchQuery, state.filters) && isBaseView(query, state.filters);
+    set({
+      searchQuery: query,
+      ...(backToBase ? restoredBaseView(state) : {}),
+    });
     void get().refreshEmails();
   },
 
   setFilters: (filters) => {
-    set({ filters });
+    const state = get();
+    const backToBase =
+      !isBaseView(state.searchQuery, state.filters) && isBaseView(state.searchQuery, filters);
+    set({
+      filters,
+      ...(backToBase ? restoredBaseView(state) : {}),
+    });
     void get().refreshEmails();
   },
 
   clearSearchAndFilters: () => {
-    const { searchQuery, filters } = get();
-    if (!searchQuery && Object.keys(filters).length === 0) return;
-    set({ searchQuery: '', filters: {} });
+    const state = get();
+    if (!state.searchQuery && Object.keys(state.filters).length === 0) return;
+    set({ searchQuery: '', filters: {}, ...restoredBaseView(state) });
     void get().refreshEmails();
   },
 
@@ -1330,6 +1377,42 @@ export const useEmailStore = create<EmailState>()(
       // refresh once the session is ready.
       name: 'email-cache',
       storage: createJSONStorage(() => AsyncStorage),
+      version: 1,
+      // v0 → v1: drop every cached queryState. Pre-v1 builds could persist a
+      // search-result list next to the base view's queryState, and the
+      // incremental sync path would then "confirm" those search results as
+      // the whole mailbox and bake them into the snapshot (issue #10).
+      // Without a queryState the next refresh does a full re-query, which
+      // rebuilds any poisoned window from the server.
+      migrate: (persisted, version) => {
+        if (version >= 1) return persisted as EmailState;
+        const s = persisted as Pick<
+          EmailState,
+          'accountSnapshots' | 'mailboxSnapshots' | 'queryState'
+        > & Record<string, unknown>;
+        const stripQueryStates = (
+          snaps: Record<string, MailboxSnapshot> | undefined,
+        ): Record<string, MailboxSnapshot> =>
+          Object.fromEntries(
+            Object.entries(snaps ?? {}).map(([id, snap]) => [
+              id,
+              { ...snap, queryState: undefined },
+            ]),
+          );
+        const accountSnapshots: Record<string, AccountSnapshot> = {};
+        for (const [id, acc] of Object.entries(s.accountSnapshots ?? {})) {
+          accountSnapshots[id] = {
+            ...acc,
+            mailboxSnapshots: stripQueryStates(acc.mailboxSnapshots),
+          };
+        }
+        return {
+          ...s,
+          accountSnapshots,
+          mailboxSnapshots: stripQueryStates(s.mailboxSnapshots),
+          queryState: undefined,
+        } as unknown as EmailState;
+      },
       partialize: (state) => ({
         accountSnapshots: state.accountSnapshots,
         activeAccountId: state.activeAccountId,

src/stores/updates-store.ts

@@ -4,6 +4,7 @@ import Constants from 'expo-constants';
 import { fetchLatestRelease, type LatestRelease } from '../api/updates';
 import { isNewer } from '../lib/version-compare';
 import { downloadAndInstallApk, type InstallProgress } from '../lib/install-update';
+import { supportsSideloadUpdates } from '../lib/platform-capabilities';
 
 const STORAGE_KEY = 'webmail:updates:v1';
 const MIN_CHECK_INTERVAL_MS = 6 * 60 * 60 * 1000;
@@ -80,6 +81,10 @@ export const useUpdatesStore = create<UpdatesState>((set, get) => ({
   },
 
   checkNow: async (opts) => {
+    // On platforms without sideloading there is nothing actionable to report,
+    // so skip the GitHub round-trip entirely rather than caching a release the
+    // user can never install.
+    if (!supportsSideloadUpdates) return;
     const s = get();
     if (s.checking) return;
     const now = Date.now();
@@ -104,6 +109,7 @@ export const useUpdatesStore = create<UpdatesState>((set, get) => ({
   },
 
   installLatest: async () => {
+    if (!supportsSideloadUpdates) return;
     const s = get();
     if (s.installing || !s.cachedLatest?.apkAsset) return;
     set({ installing: true, error: null, installProgress: { phase: 'downloading', progress: 0 } });
@@ -142,6 +148,7 @@ export const useUpdatesStore = create<UpdatesState>((set, get) => ({
   currentVersion: () => Constants.expoConfig?.version ?? '0.0.0',
 
   hasUpdate: () => {
+    if (!supportsSideloadUpdates) return false;
     const s = get();
     if (!s.cachedLatest) return false;
     const current = Constants.expoConfig?.version ?? '0.0.0';