feat: Add Playbook Manager, Saved Searches, and Timeline View components

- Implemented PlaybookManager for creating and managing investigation playbooks with templates.
- Added SavedSearches component for managing bookmarked queries and recurring scans.
- Introduced TimelineView for visualizing forensic event timelines with zoomable charts.
- Enhanced backend processing with auto-queued jobs for dataset uploads and improved database concurrency.
- Updated frontend components for better user experience and performance optimizations.
- Documented changes in update log for future reference.

frontend/package.json

@@ -13,7 +13,8 @@
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
     "react-router-dom": "^7.13.0",
-    "react-scripts": "5.0.1"
+    "react-scripts": "5.0.1",
+    "recharts": "^3.7.0"
   },
   "scripts": {
     "start": "react-scripts start",