feat: Add Docker setup and integrate a local CoTURN server for WebRTC ICE candidates.

docker-compose.yml

@@ -0,0 +1,21 @@
+version: "3.8"
+
+services:
+  app:
+    build: .
+    ports:
+      - "3000:3000"
+    restart: always
+
+  coturn:
+    image: coturn/coturn:latest
+    network_mode: "host"
+    restart: always
+    command: >
+      -n
+      --log-file=stdout
+      --min-port=49152
+      --max-port=49252
+      --realm=yourdomain.com
+      --user=myuser:mypassword
+      --stale-nonce