[SESSION-3] Add organization timeline feature
- Database: activity_log table with indexes
- Backend: Activity logger service + timeline API
- Frontend: Timeline.vue with date grouping and filtering
- Integration: Upload route logs activity
- UI: Modern timeline with infinite scroll
Backend changes:
- migrations/010_activity_timeline.sql: Activity log schema
- services/activity-logger.js: Log events to timeline
- routes/timeline.js: GET /api/organizations/:orgId/timeline
- routes/upload.js: Integrate activity logging
- index.js: Register timeline route
Frontend changes:
- views/Timeline.vue: Timeline component with date grouping
- router.js: Add /timeline route with auth
- views/HomeView.vue: Add Timeline navigation button
Features:
- Reverse chronological event feed
- Date grouping (Today, Yesterday, This Week, etc.)
- Event type filtering (uploads, maintenance, etc.)
- Infinite scroll pagination
- User attribution
- Links to source documents
Resolves: Timeline feature spec
c0486e3f4d