- Await _loadMembers after invite to avoid stale member list state
- Await _loadMembers after remove for deterministic UI sync
- Keep collaborative management views consistent immediately after mutations
- Add scanner status bar with real-time state (ready/scanning/saved)
- Add success pulse styling after accepted detection for faster repeated scans
- Keep scanner in uninterrupted loop while giving clear visual confirmation
- Add invite busy state in manage collection to prevent duplicate submits
- Improve collaborative management responsiveness with explicit inviting state
- Persist scanner activeCollectionId via shared_preferences
- Restore last selected collection automatically on scan tab load
- Keep selection valid if collection list changes and store fallback safely
- Harden collection membership service rules:
- only owners can invite/remove members
- prevent self-invite duplicates
- block owner removal
- block owner leave action with explicit error
- Improve manage-collection UX with pull-to-refresh and owner leave guidance
