Create WebSocket Server

- Created a WebSocket server with connection handling and message broadcasting
- Added frontend files including HTML, TypeScript, and CSS for a WebSocket test client
- Configured package.json for both server and frontend with necessary scripts and dependencies
- Introduced Prettier configuration for code formatting
- Established a basic structure for handling WebSocket connections and messages

package.json

@@ -11,10 +11,14 @@
   "type": "module",
   "main": "index.js",
   "scripts": {
-    "dev:server": "npm run dev --workspace=server"
+    "dev:web": "npm run dev --workspace=web",
+    "dev:server": "npm run dev --workspace=server",
+    "lint:server": "npm run lint --workspace=server",
+    "lint:fix:server": "npm run lint:fix --workspace=server"
   },
   "workspaces": [
-    "server"
+    "server",
+    "frontend/web"
   ],
   "devDependencies": {
     "@types/node": "24.3.1",