✨(y-webrtc-signaling) create signaling server

Create signaling server for WebRTC.
It will be used for the collaborative editor, client
will connect to this server to see their
changes in real-time.

src/frontend/apps/y-webrtc-signaling/package.json

@@ -0,0 +1,29 @@
+{
+  "name": "y-webrtc-signaling",
+  "version": "0.1.0",
+  "description": "WebRTC server for Yjs",
+  "repository": "https://github.com/numerique-gouv/impress",
+  "license": "MIT",
+  "type": "module",
+  "scripts": {
+    "build": "tsc -p .",
+    "dev": "nodemon --exec src/server.ts",
+    "start": "node ./dist/server.js",
+    "lint": "eslint . --ext .ts"
+  },
+  "engines": {
+    "node": ">=18"
+  },
+  "dependencies": {
+    "ws": "8.16.0"
+  },
+  "devDependencies": {
+    "@types/node": "*",
+    "@types/ws": "8.5.10",
+    "eslint-config-impress": "*",
+    "nodemon": "3.1.0",
+    "ts-jest": "29.1.2",
+    "ts-node": "10.9.2",
+    "typescript": "*"
+  }
+}