feat: add frp docker compose setup

frp/frps/.env.sample

@@ -0,0 +1,13 @@
+# Copy this file to .env and adjust the values:
+#     cp .env.sample .env
+
+FRPS_BIND_PORT=7000
+
+# Must match the token on frpc. Use a long random string, e.g. `openssl rand -hex 16`
+FRPS_TOKEN=change-me-to-a-strong-random-token
+
+FRPS_DASHBOARD_PORT=7500
+FRPS_DASHBOARD_USER=admin
+FRPS_DASHBOARD_PASSWORD=change-me-too
+
+TZ=Asia/Shanghai