Local-only: remap test-deploy ports to avoid conflicts on cj-ki

Not part of the cable-sizing proposal - only needed because this host
already runs ~50 other containers using the default 3000/3001 and the
default docker network address pool was exhausted. Should not be
carried over if this branch is ever proposed upstream.

compose.yaml

@@ -20,7 +20,7 @@ services:
         max-size: "20m"
         max-file: "10"
     ports:
-      - "3000:3000"
+      - "3221:3000"
     volumes:
       - ./src:/app/src
       - ./scripts:/app/scripts
@@ -64,7 +64,7 @@ services:
       api:
         condition: service_healthy
     ports:
-      - "3001:3001"
+      - "3220:3001"
     volumes:
       - ./src:/app/src
       - ./next.config.mjs:/app/next.config.mjs:ro
@@ -80,3 +80,9 @@ services:
       timeout: 3s
       retries: 12
       start_period: 20s
+
+networks:
+  default:
+    ipam:
+      config:
+        - subnet: 172.16.61.0/24