- Update BackgroundTasksIndicator to display error sessions count alongside active sessions
- Include error sessions in App filter for notification banner visibility
- Add session cancellation for mission interviews on banner dismiss
- Add comprehensive test coverage for SessionNotificationBanner component
- Update useBackgroundSessions hook to expose error session counts
- Add tryRelinkOrphanedFeature() to find and link matching tasks
- Normalize titles (trim, lowercase, collapse whitespace) for matching
- Only relink when exactly one task matches (ambiguous = no action)
- Sync feature status from task state on successful relink
- Normalize to 'defined' when no safe relink exists
- Add 7 tests for orphaned feature relink scenarios
- All 57 tests passing
- Add SessionNotificationBanner to list awaiting_input AI sessions with type-specific labels/icons and resume or dismiss actions
- Integrate the banner into App project layout and wire resume handlers for planning, subtask, and mission interview sessions
- Add dismiss-all handling that clears all currently awaiting-input background sessions from the banner
- Style the banner with sticky placement, entry animation, responsive layout, and action button states
- Add component tests covering filtering, count rendering, resume/dismiss callbacks, type metadata, and local dismissal behavior
