- Install @alpinejs/collapse plugin for smooth expand/collapse animation
- Fix controller ordering: notes now explicitly ordered newest first via latest('created_at')
- Note count badge is now clickable button to toggle history panel
- Add expansion panel row with loading state, search filter, empty state
- Search filters notes by content or author name (client-side)
- Panel collapses cleanly, search query resets on close
- Cache sync: new notes from inline form appear in history immediately
- Display format: author name and formatted datetime (YYYY年MM月DD日 HH:mm)
- Empty state shows '尚無備註', no-results shows '找不到符合的備忘錄'
- MemberNoteController with index() and store() methods
- StoreNoteRequest with Traditional Chinese validation messages
- Routes registered at admin.members.notes.index/store
- JSON responses for AJAX consumption in Phase 2
- DB::transaction wrapper with AuditLogger::log
