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>

package.json

@@ -75,6 +75,7 @@
     "nodemailer": "^7.0.7",
     "openai": "^6.16.0",
     "papaparse": "^5.4.1",
+    "pdf-parse": "^2.4.5",
     "react": "^19.0.0",
     "react-day-picker": "^9.13.0",
     "react-dom": "^19.0.0",
@@ -96,6 +97,7 @@
     "@types/node": "^25.0.10",
     "@types/nodemailer": "^7.0.9",
     "@types/papaparse": "^5.3.15",
+    "@types/pdf-parse": "^1.1.5",
     "@types/react": "^19.0.2",
     "@types/react-dom": "^19.0.2",
     "eslint": "^9.17.0",