Kyle Pope b0af07c270 Add lock screen, auto-lock timeout, and login visual upgrade
- Backend: POST /verify-password endpoint for lock screen re-auth,
  auto_lock_enabled/auto_lock_minutes columns on Settings with migration 025
- Frontend: LockProvider context with idle detection (throttled activity
  listeners, pauses during mutations), Lock button in sidebar, full-screen
  LockOverlay with password re-entry and "Switch account" option
- Settings: Security card with auto-lock toggle and configurable timeout (1-60 min)
- Visual: Upgraded login screen with large title, animated floating gradient
  orbs (3 drift keyframes), subtle grid overlay, shared AmbientBackground component

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-25 10:03:12 +08:00
..
2026-02-15 16:13:41 +08:00