fix(deploy): stable container_name for the proxy (avoid pinned-IP collision)

container_name: spacesh-proxy lets NPM forward by name instead of the fragile
pinned 172.18.0.28, which another webproxy container could grab — sending NPM
to the wrong target (or itself) and looping.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

deploy/docker-compose.yaml

@@ -14,6 +14,9 @@ services:
 
   proxy:
     image: nginx:1.27-alpine
+    # Stable name so NPM can forward by name (spacesh-proxy:80) instead of a
+    # pinned IP that another webproxy container could grab.
+    container_name: spacesh-proxy
     restart: unless-stopped
     depends_on:
       - landing