fix: the band names the path Deploy will create, and keeps the summary readable

A brand-new app is parked at a `draft_<uuid>` placeholder, and the band named
that rather than the path its Deploy will create — `newEditedPath` refuses the
placeholder for exactly this reason, and the editor's own bar read it. Both app
editors register it now. Verified: the trail reads `u/admin/gentle_app` while the
URL is still the draft.

The band's summary gets the `title` the editor's own bar had, so one the bar
truncates can still be read on hover.

The wrapper that hid AppExportButton on a phone never hid anything:
the component draws no trigger — it is the export drawer, which portals to
`body` — so the class toggle was inert in both states and the comment read as if
something moved. Dropped from both app editors.

Two comments corrected: `NAV_PAGES`' `icon` does reach the breadcrumb for all
eleven entries (`NavBreadcrumb` renders `routePage.icon`), so only `operatorKey`
goes unread for the four the sidebar groups separately; and the raw editor's
phone note described folding that does not happen — the file-sidebar toggle stays
in the band, Jobs and the export are already in the menu, and AI is what stands
down.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

frontend/src/lib/components/apps/editor/AppEditorHeader.svelte

@@ -943,7 +943,14 @@
 	<!-- The editor's own top bar is the page header on this route: the app's path and summary are
 	     the breadcrumb's, and everything else the bar carried rides along as the header's actions. -->
 	<PageHeaderContent
-		item={{ kind: 'app', path: $appPath || newPath || undefined, summaryContent: appSummary }}
+		item={{
+			// The path being edited, not the stored one: a brand-new app is parked at a
+			// `draft_<uuid>` placeholder, and the trail would name that instead of the path Deploy
+			// will create. Same chain the rename sites read, and what the editor's own bar showed.
+			kind: 'app',
+			path: newEditedPath || $appPath || newPath || undefined,
+			summaryContent: appSummary
+		}}
 		actions={appHeaderActions}
 		contexts={headerContexts}
 	/>
@@ -979,16 +986,19 @@
 
 {#snippet appSummary()}
 	<!-- The summary stays editable where the editor's own bar had it; the path beside it is the
-	     breadcrumb, which this editor renames from its deploy drawer. -->
-	<EditableInput
-		value={$summary ?? ''}
-		placeholder="Add a summary..."
-		commitOnInput
-		size="sm"
-		onSave={(v) => ($summary = v.trim())}
-		textClass="text-xs font-medium text-emphasis leading-tight"
-		class="max-w-full min-w-0"
-	/>
+	     breadcrumb, which this editor renames from its deploy drawer. `title` so a summary the
+	     band truncates can still be read, the way the editor's own bar did it. -->
+	<div class="max-w-full min-w-0" title={$summary}>
+		<EditableInput
+			value={$summary ?? ''}
+			placeholder="Add a summary..."
+			commitOnInput
+			size="sm"
+			onSave={(v) => ($summary = v.trim())}
+			textClass="text-xs font-medium text-emphasis leading-tight"
+			class="max-w-full min-w-0"
+		/>
+	</div>
 {/snippet}
 
 {#snippet appHeaderActions()}
@@ -1213,11 +1223,10 @@
 				</div>
 			</Button>
 		</div>
-		<!-- The export is in the menu on a phone; the preview switch keeps its place there, since
+		<!-- Draws nothing in the bar: it is the export drawer, opened from the menu's Export
+		     entries through this instance. The preview switch keeps its place on a phone, since
 		     seeing the app is most of what an app editor is good for on one. -->
-		<div class={phoneTopbar ? 'hidden' : 'contents'}>
-			<AppExportButton bind:this={appExport} />
-		</div>
+		<AppExportButton bind:this={appExport} />
 		<PreviewToggle loading={loading.save} iconOnly={phoneTopbar} />
 		<Button
 			variant="accent"

frontend/src/lib/components/raw_apps/RawAppEditorHeader.svelte

@@ -323,8 +323,9 @@
 		const w = ownsPageHeader ? pageHeader.barWidth : topbarWidth
 		return w > 0 && w < compactBelow
 	})
-	// A phone's bar holds the trail and Deploy. The file sidebar's toggle, Jobs and the export
-	// join the menu that compact already shows.
+	// A phone's bar keeps the trail, the file sidebar's toggle, Diff and Deploy. AI stands down —
+	// the sidebar's own Ask AI is the way in at that width — while Jobs and the export are already
+	// in the menu, Jobs from `compactTopbar` (true at any phone width) and the export always.
 	const phoneTopbar = $derived(
 		ownsPageHeader && pageHeader.barWidth > 0 && pageHeader.barWidth < PHONE_BAR
 	)
@@ -933,7 +934,14 @@
 	     the breadcrumb's, and everything else the bar carried rides along as the header's actions.
 	     The path is a plain label there — this editor renames from its deploy drawer. -->
 	<PageHeaderContent
-		item={{ kind: 'app', path: appPath || newPath || undefined, summaryContent: appSummary }}
+		item={{
+			// The path being edited, not the stored one: a brand-new app is parked at a
+			// `draft_<uuid>` placeholder, and the trail would name that instead of the path Deploy
+			// will create — which is why `newEditedPath` refuses the placeholder above.
+			kind: 'app',
+			path: newEditedPath || appPath || newPath || undefined,
+			summaryContent: appSummary
+		}}
 		actions={rawAppHeaderActions}
 		contexts={headerContexts}
 	/>
@@ -1010,16 +1018,19 @@
 
 {#snippet appSummary()}
 	<!-- The summary stays editable where the editor's own bar had it; the path beside it is the
-	     breadcrumb, which this editor renames from its deploy drawer. -->
-	<EditableInput
-		value={summary ?? ''}
-		placeholder="Add a summary..."
-		commitOnInput
-		size="sm"
-		onSave={(v) => (summary = v.trim())}
-		textClass="text-xs font-medium text-emphasis leading-tight"
-		class="max-w-full min-w-0"
-	/>
+	     breadcrumb, which this editor renames from its deploy drawer. `title` so a summary the
+	     band truncates can still be read, the way the editor's own bar did it. -->
+	<div class="max-w-full min-w-0" title={summary}>
+		<EditableInput
+			value={summary ?? ''}
+			placeholder="Add a summary..."
+			commitOnInput
+			size="sm"
+			onSave={(v) => (summary = v.trim())}
+			textClass="text-xs font-medium text-emphasis leading-tight"
+			class="max-w-full min-w-0"
+		/>
+	</div>
 {/snippet}
 
 {#snippet rawAppHeaderActions()}
@@ -1091,10 +1102,9 @@
 			</div>
 		</Button>
 	</div>
-	<!-- Hidden, not unmounted: the menu's own Export entry calls into this instance. -->
-	<span class={phoneTopbar ? 'hidden' : 'contents'}>
-		<AppExportButton bind:this={appExport} />
-	</span>
+	<!-- Draws nothing in the bar: it is the export drawer, opened from the menu's Export entry
+	     through this instance. -->
+	<AppExportButton bind:this={appExport} />
 	{#if !phoneTopbar}
 		<OpenInSessionButton source={sessionOpen}>
 			{#snippet fallback()}

frontend/src/lib/components/sidebar/navPages.ts

@@ -17,10 +17,11 @@ import type { OperatorPageKey } from './operatorRoutes'
  * The names the page header's breadcrumb gives the workspace's own pages, and the rows the
  * sidebar's main group is built from.
  *
- * Every entry names a page for the breadcrumb. Only the entries `SidebarContent`'s
- * `MAIN_MENU_EXTRAS` also lists become sidebar links from here — Schedules, HTTP routes, Workers
- * and Audit logs are grouped differently there and carry their own row, so for those four the
- * `icon` and `operatorKey` below go unread. Keep the labels in step with those rows by hand.
+ * Every entry names a page for the breadcrumb, and its `icon` goes there too. Only the entries
+ * `SidebarContent`'s `MAIN_MENU_EXTRAS` also lists become sidebar links from here — Schedules,
+ * HTTP routes, Workers and Audit logs are grouped differently there and carry their own row, so
+ * for those four the `operatorKey` below goes unread. Keep the labels in step with those rows by
+ * hand.
  */
 export type NavPage = {
 	label: string