fix(geocoding): don't bind libpostal to host port 4400

Port 4400 collides with mana-infra-landings (status.mana.how nginx)
on the production mac mini. libpostal is only reached internally by
pelias-api over the pelias compose network anyway — no host binding
needed. Use expose instead of ports to drop the host mapping.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

services/mana-geocoding/pelias/docker-compose.yml

@@ -39,8 +39,12 @@ services:
     image: pelias/libpostal-service
     container_name: pelias-libpostal
     restart: unless-stopped
-    ports:
-      - "4400:4400"
+    # No host port mapping — libpostal is an internal dependency of
+    # pelias-api, reached over the pelias network at libpostal:4400.
+    # Port 4400 on the host is used by mana-infra-landings (nginx for
+    # status.mana.how) on the production mac mini.
+    expose:
+      - "4400"
     networks:
       - pelias