Observer dashboard extraction, PDF reports, jury UX overhaul, and miscellaneous improvements

- Extract observer dashboard to client component, add PDF export button
- Add PDF report generator with jsPDF for analytics reports
- Overhaul jury evaluation page with improved layout and UX
- Add new analytics endpoints for observer/admin reports
- Improve round creation/edit forms with better settings
- Fix filtering rules page, CSV export dialog, notification bell
- Update auth, prisma schema, and various type fixes

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/server/routers/applicant.ts

@@ -826,7 +826,7 @@ export const applicantRouter = router({
             email: input.email,
             name: input.name,
             role: 'APPLICANT',
-            status: 'INVITED',
+            status: 'NONE',
           },
         })
       }