AI category-aware evaluation: per-round config, file parsing, shortlist, advance flow

- Per-juror cap mode (HARD/SOFT/NONE) in add-member dialog and members table
- Jury invite flow: create user + add to group + send invitation from dialog
- Per-round config: notifyOnAdvance, aiParseFiles, startupAdvanceCount, conceptAdvanceCount
- Moved notify-on-advance from competition-level to per-round setting
- AI filtering: round-tagged files with newest-first sorting, optional file content extraction
- File content extractor service (pdf-parse for PDF, utf-8 for text files)
- AI shortlist runs independently per category (STARTUP / BUSINESS_CONCEPT)
- generateAIRecommendations tRPC endpoint with per-round config integration
- AI recommendations UI: trigger button, confirmation dialog, per-category results display
- Category-aware advance dialog: select/deselect projects by category with target caps
- STAGE_ACTIVE bug fix in assignment router

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

src/server/routers/assignment.ts

@@ -159,7 +159,7 @@ async function runAIAssignmentJob(jobId: string, roundId: string, userId: string
       type: NotificationTypes.AI_SUGGESTIONS_READY,
       title: 'AI Assignment Suggestions Ready',
       message: `AI generated ${result.suggestions.length} assignment suggestions for ${round.name || 'round'}${result.fallbackUsed ? ' (using fallback algorithm)' : ''}.`,
-      linkUrl: `/admin/competitions/${round.competitionId}/assignments`,
+      linkUrl: `/admin/rounds/${roundId}`,
       linkLabel: 'View Suggestions',
       priority: 'high',
       metadata: {