chore: set restart: unless-stopped on every service

Coolify injects the same value when a compose service omits one, but Dokploy
runs the file as written, so in its default compose mode an omitted policy
leaves the container down after a crash or a host reboot.

opencode-web/compose.yml

@@ -1,6 +1,7 @@
 services:
   opencode-web:
     build: .
+    restart: unless-stopped
     command:
       - web
       - '--hostname'