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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>