feat: semi-finalist tracker dashboard, account reminders, search + UX fixes

- Add getSemiFinalistStats query with per-category/per-award breakdown
- Add sendAccountReminders mutation with invite token generation and dedup
- Add SemiFinalistTracker dashboard widget with progress bars and remind buttons
- Add ACCOUNT_REMINDER email template
- Extend project search to match team member name/email (7 locations)
- Fix Passed count deduplication: count distinct projects, not round-state rows
- Fix role switcher: visible pills above user section, auto-refresh session on mount

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

src/server/routers/project-pool.ts

@@ -57,7 +57,7 @@ export const projectPoolRouter = router({
         where.competitionCategory = competitionCategory
       }
 
-      // Search in title, teamName, description, institution, country, geographicZone, team member names
+      // Search in title, teamName, description, institution, country, geographicZone, team member names/emails
       if (search) {
         where.OR = [
           { title: { contains: search, mode: 'insensitive' } },
@@ -67,6 +67,7 @@ export const projectPoolRouter = router({
           { country: { contains: search, mode: 'insensitive' } },
           { geographicZone: { contains: search, mode: 'insensitive' } },
           { teamMembers: { some: { user: { name: { contains: search, mode: 'insensitive' } } } } },
+          { teamMembers: { some: { user: { email: { contains: search, mode: 'insensitive' } } } } },
         ]
       }
 
@@ -344,6 +345,8 @@ export const projectPoolRouter = router({
           OR: [
             { title: { contains: search, mode: 'insensitive' } },
             { teamName: { contains: search, mode: 'insensitive' } },
+            { teamMembers: { some: { user: { name: { contains: search, mode: 'insensitive' } } } } },
+            { teamMembers: { some: { user: { email: { contains: search, mode: 'insensitive' } } } } },
           ],
         }
       }