Add Sankofa consolidated hub operator tooling

config/compose/sankofa-consolidated-runtime.example.yml

@@ -0,0 +1,15 @@
+# Example: API hub container only. Point upstream blocks in
+# config/nginx/sankofa-phoenix-api-hub.example.conf to real Phoenix (e.g. :4000) and
+# dbis_core (:3000) — on the same host use 127.0.0.1 after colocation, or LAN IPs
+# (e.g. 192.168.11.50, 192.168.11.155) during migration.
+#
+# docker compose -f sankofa-consolidated-runtime.example.yml up -d
+
+services:
+  api-hub:
+    image: nginx:1.27-alpine
+    ports:
+      - "8080:8080"
+    volumes:
+      - ../nginx/sankofa-phoenix-api-hub.example.conf:/etc/nginx/conf.d/default.conf:ro
+    restart: unless-stopped