Adds 11-cross-view-retain.spec.ts: with the Unread cross view open, reading a
mail keeps it in the list (status + unread counter update only, no removal);
with the Starred cross view open, un-starring keeps it. Both force the
focus/push refresh that previously dropped the row and assert it survives.
Supporting test hooks:
- thread-list-item: expose data-starred on the row.
- email-context-menu: testId ctx-star / ctx-unstar on the star item.
- integration helpers: expectEmailStarred (app.ts), setFlagged (jmap.ts).
- integration policy.json: enable crossStarredViewEnabled.
Verified: 08-shared-moves-style run of 11-cross-view-retain → 2/2 passed
against the dockerized stack.
Add an end-to-end integration harness that runs the webmail against a real
Stalwart mail server in Docker and drives it with Playwright, focused on the
mail/folder synchronisation behaviour (unread/total counters, folder-list
sync, account-scoped Unified Mailbox) that the unified-mailbox work touches.
- integration/ stack: Stalwart (declarative bootstrap: alice/bob/carol,
submission + IMAP listeners, permissive CORS) + webmail (dev mode, so the
browser's plaintext cross-origin JMAP calls aren't blocked by the prod CSP).
- Helpers: dependency-free SMTP submit client, JMAP client for seeding /
inspecting server state, and page helpers (login, add/switch account,
locale-independent folder-counter reads).
- Specs: login, single-account sync (receive/read/move/delete/folder-create/
burst) and multi-account (per-account isolation + cross-account Unified
Inbox aggregation + background-account delivery). 12 tests, all green.
- Add focused data-testid hooks to the mail UI (folder rows + counters, email
list items, account switcher, composer) for stable selectors.
- Exclude examples/ and integration/ from tsconfig/eslint/.dockerignore.