fix(ops): increase post-deploy service stabilization wait from 20s to 30s

.gitea/workflows/cd.yml

@@ -245,7 +245,7 @@ jobs:
           DOCKER_HOST: tcp://192.168.88.40:2375
         run: |
           # Wait for services to stabilize
-          sleep 20
+          sleep 30
 
           # Check chat health (via docker exec — IP-agnostic, works on any DOCKER_HOST)
           echo "Checking chat health..."