Jury dashboard compact layout, assignment redesign, auth fixes

- Jury dashboard: collapse zero-assignment state into single welcome card
  with inline quick actions; merge completion bar into stats row; tighten spacing
- Manual assignment: replace tiny Dialog modal with inline collapsible section
  featuring searchable juror combobox and multi-select project list with bulk assign
- Fix applicant invite URL path (/auth/accept-invite -> /accept-invite)
- Add APPLICANT role redirect to /my-submission from root page
- Add Applicant label to accept-invite role display
- Fix a/an grammar in invitation emails and accept-invite page
- Set-password page: use MOPC logo instead of lock icon
- Notification bell: remove filter tabs, always show all notifications

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

src/server/routers/project.ts

@@ -561,7 +561,7 @@ export const projectRouter = router({
               },
             })
 
-            const inviteUrl = `${baseUrl}/auth/accept-invite?token=${token}`
+            const inviteUrl = `${baseUrl}/accept-invite?token=${token}`
             await sendInvitationEmail(member.email, member.name, inviteUrl, 'APPLICANT')
 
             // Log notification