fix: sync production DB schema on every server start

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/package.json

@@ -5,8 +5,9 @@
   "main": "dist/index.js",
   "scripts": {
     "dev": "tsx watch src/index.ts",
-    "build": "tsc",
-    "start": "node dist/index.js",
+    "db:sync": "prisma migrate deploy || prisma db push",
+    "build": "prisma generate && tsc",
+    "start": "npm run db:sync && node dist/index.js",
     "db:migrate": "prisma migrate dev",
     "db:generate": "prisma generate",
     "db:studio": "prisma studio",
@@ -23,6 +24,7 @@
     "jsonwebtoken": "^9.0.2",
     "morgan": "^1.10.0",
     "multer": "^1.4.5-lts.1",
+    "prisma": "^6.0.0",
     "socket.io": "^4.8.0",
     "uuid": "^10.0.0"
   },
@@ -35,7 +37,6 @@
     "@types/multer": "^1.4.12",
     "@types/node": "^22.0.0",
     "@types/uuid": "^10.0.0",
-    "prisma": "^6.0.0",
     "tsx": "^4.19.0",
     "typescript": "^5.6.0"
   }