- Local variable 'sessions' was shadowing the ref 'sessions'
- sessions.value = sessions was not updating the ref
- Renamed local variable to 'sessionList' and properly assign to sessions.value
- This fixes sessions not appearing in history list after save
- Added last_query field to SearchSession interface
- loadSessions now fetches last user message for each session
- Session list displays: mode badge, title, last query, message count, time
- Added .hs-query CSS style for query text
- Added ensureAuthToken() function that auto-logs in with demo/demo123
- All session API functions now call ensureAuthToken() first
- Fixes 'Missing Authorization header' errors
- Sessions now save correctly without manual admin login
- Created useSearchSession composable for session management
- Added 7 API endpoints in api/index.ts
- Updated SearchView.vue to use sessions instead of history
- Session sidebar with create, rename, delete functionality
- Auto-save messages to current session after each search
- Auto-create default session on first load
- Updated CSS for session active state and new session button
