2d59a5b994
Apply six isolated, low-risk fixes surfaced by the parallel production-readiness review (backend, frontend, security, perf, UI/UX, bugs+features). Backend - Mask access_token in provider GET responses and drop it on edit when carrying the *** placeholder — fixes plaintext leak of HA long-lived tokens (security H-1). Centralized via PROVIDER_SECRET_FIELDS so all call sites stay in sync (C-5). - Hold HA status-change tasks in a module-level set with a done_callback — asyncio.create_task only keeps weak refs and the task could be GC'd before its row was written (C-1). - Roll back the request session in the Telegram-webhook catch-all so a handler exception cannot leak uncommitted writes into the next request (C-2). - Bail before reading the 1 MiB webhook body when the Gitea provider has no secret configured or the request has no signature header. For the generic webhook with bearer_token auth, verify the Authorization header before the body read. Closes the pre-auth resource-exhaustion amplifier (C-3). Frontend - Add supportsAutoOrganize capability to ProviderDescriptor and consume it from RuleEditor instead of `provider.type !== 'immich'`, bringing the last action-rule editor under CLAUDE.md rule 8 (no provider-type hardcoding in components). - Snackbar: add role="region" + per-toast role/aria-live/aria-atomic so screen readers announce success/error toasts. - Sidebar nav: add aria-current="page" on the active link so the active state has an accessible name. - New snackbar.region key in en + ru (locale parity preserved). Out of scope for this commit (tracked in .claude/reviews/README.md ship-blocker list): secret encryption at rest, JWT cookie move, Alembic adoption, webhook idempotency, deferred-dispatch crash window, persisted Telegram update watermark, bridge_self counter lock — each needs more than a mechanical edit.