feat: auth system, scrip scheduler, UI widgets, and new API routes

- Add session-based authentication (login page, middleware, auth context)
- Add cron-like scrip scheduler for time-based conditions
- Add layout builder, scrip wizard, searchable select components
- Add trend chart widget for dashboards
- Add notifications, attachments, queue-permissions API routes
- Add seed-users script
- Update schema with 10 new migrations (0008-0017)
- Apply redesign: Linear-inspired dark theme, conversation-centric UI
- Gitignore runtime data directory

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

package.json

@@ -22,6 +22,7 @@
   },
   "dependencies": {
     "@types/nodemailer": "^8.0.0",
+    "jose": "^6.2.3",
     "nodemailer": "^8.0.10"
   }
 }