feat: Add Yjs WebSocket server dependencies

backend/package.json

@@ -16,7 +16,7 @@
     "argon2": "^0.30.0",
     "@fastify/jwt": "^5.0.0",
     "@fastify/cookie": "^9.0.0",
-    "@fastify/csrf": "^6.0.0",
+    "@fastify/crsf": "^6.0.0",
     "zod": "^3.0.0",
     "@fastify/cors": "^9.0.0",
     "@fastify/helmet": "^11.0.0",
@@ -33,6 +33,25 @@
     "tsconfig": "^7.0.0",
     "tsx": "^4.0.0",
     "typescript": "^5.0.0",
+    "vite": "^2.0.0",
     "vitest": "^2.0.0"
+  },
+  "dependencies": {
+    "fastify": "^5.0.0",
+    "better-sqlite3": "^9.0.0",
+    "argon2": "^0.30.0",
+    "@fastify/jwt": "^5.0.0",
+    "@fastify/cookie": "^9.0.0",
+    "@fastify/crsf": "^6.0.0",
+    "zod": "^3.0.0",
+    "@fastify/cors": "^9.0.0",
+    "@fastify/helmet": "^11.0.0",
+    "@fastify/rate-limit": "^9.0.0",
+    "@fastify/swagger": "^8.0.0",
+    "@fastify/swagger-ui": "^4.0.0",
+    "y-websocket": "^1.5.0",
+    "y-leveldb": "^0.1.0",
+    "ws": "^8.17.0",
+    "yjs": "^13.6.8"
   }
 }