feat: add version specification to docker-compose.yml

Specify Compose file format version as "3.9" to ensure explicit compatibility with Docker Compose features and avoid ambiguity in deployment environments.

lemon-mint committed Oct 24, 2025 at 16:45 UTC ca114f4cb0257dc29147067f13199fe6b1d564a3
1 file changed +2
docker-compose.yml
+2
@@ -1,3 +1,5 @@
1 +version: "3.9"
2 +
3 services:
4 relayserver:
5 build: