Add client runtime and hello handshake

package.json

@@ -21,6 +21,9 @@
     "clean": "rm -rf dist",
     "check": "tsc -p tsconfig.json --noEmit"
   },
+  "dependencies": {
+    "ws": "^8.18.0"
+  },
   "devDependencies": {
     "typescript": "^5.6.3"
   }