feat(docver): add document versioning API (docx+pdf in MinIO)

Stand-alone API group at /api/documents/{docId}/versions — one document
per docId (unique), each version stores .docx + optional .pdf as MinIO
objects with uploader userId/userName/createdAt (no auth, like
api/template; callers identify themselves per docs/PLAN-DOCVER.md).

- POST versions (multipart): validates fields/magic bytes/100MB cap,
  uploads to MinIO first, cleans up objects if the DB insert fails;
  returns {hasPdf, versionId, versionNumber} with server-authoritative
  numbering (tx: upsert + SELECT FOR UPDATE, safe under parallel calls)
- GET versions: DocumentVersionDTO[] newest-first (404 for unknown docId)
- GET versions/{versionId}/download-link?format=docx|pdf: presigned URL
  (docId+versionId matched together; pdf-missing = 404)
- tables documents/document_versions + migration drizzle/0005
- docker-compose.yml: judes-note-db + judes-note-minio (quay.io image,
  host ports 19000/19001, POSTGRES_DB ecourt-note, pinned volume names)
- lib/openapi.ts: documents tag + paths for Swagger UI
- middleware: exempt api/documents from login redirect
- unit tests tests/lib/document-versioning.test.ts (23 cases)

wordaddin untouched — swap the mock later via NEXT_PUBLIC_ADDIN_API_BASE_URL.

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

package.json

@@ -17,6 +17,7 @@
     "@xmldom/xmldom": "^0.9.12",
     "drizzle-orm": "^0.45.2",
     "lucide-react": "^1.42.0",
+    "minio": "^8.0.7",
     "next": "^14.2.35",
     "pdf-lib": "^1.17.1",
     "pdfjs-dist": "^4.10.38",