Task 9 (P3 plan): queue tab replaces the stub, continuous capture page
enqueues per shot, album detail gains an upload FAB, and the upload
engine lifecycle is now bound to the login session.
- Engine scope: session account drives UploadEngine start/stop; wired
from app boot, login success, logout, and 401 eviction. Tasks stay in
the store across logout (accountId hard isolation).
- Queue tab: album x state x time filter bar, task rows with thumbnail,
state chip, localized error copy, attempt count, per-row progress via
a broadcast progress hub, state-dependent actions (re-pick retry,
retryNow, cancel, delete), batch retry bar, 200ms-debounced live
refresh from drift table updates.
- Capture page: camera preview via injected CaptureSource, one enqueue
per shutter press, persistent album/category/badges overlay with a
switch-only-affects-new-shots hint, gallery multi-pick, exit confirm
while uploads are pending, permission-denied and init-failure views.
- POST_NOTIFICATIONS runtime permission via a small MethodChannel
(photolive/permissions) + PermissionPlugin.kt: single runtime
permission need, avoids permission_handler dependency; requested once
on first enqueue, silent degradation when denied or unavailable.
- Album detail FAB: capture-and-upload / pick-from-gallery sheet.
- l10n: ~50 new keys in zh/en arbs; tests: +45 (filter matrix, engine
scope lifecycle, permission gate, queue tab, capture page, FAB entry);
existing page tests updated to inject session/task-store fakes.
Co-Authored-By: Claude Code <noreply@anthropic.com>