fix: resolve Prisma mismatch, update Next.js setup and docker configuration

apps/web/package.json

@@ -11,7 +11,7 @@
   "dependencies": {
     "@agent-bounty/contracts": "workspace:*",
     "@e2b/code-interpreter": "^2.6.0",
-    "@prisma/client": "^7.8.0",
+    "@prisma/client": "^6.4.1",
     "ioredis": "^5.11.1",
     "next": "16.2.7",
     "react": "19.2.4",
@@ -25,7 +25,7 @@
     "@types/react-dom": "^19",
     "eslint": "^9",
     "eslint-config-next": "16.2.7",
-    "prisma": "^7.8.0",
+    "prisma": "^6.4.1",
     "tailwindcss": "^4",
     "typescript": "^5"
   }