feat: add frp docker compose setup

frp/frpc/docker-compose.yml

@@ -0,0 +1,12 @@
+services:
+  frpc:
+    image: snowdreamtech/frpc:latest
+    container_name: frpc
+    restart: unless-stopped
+    network_mode: host
+    env_file:
+      - .env
+    environment:
+      TZ: ${TZ:-Asia/Shanghai}
+    volumes:
+      - ./frpc.toml:/etc/frp/frpc.toml:ro