Add fullstack example

examples/fullstack/compose.override.yml

@@ -0,0 +1,16 @@
+---
+services:
+  backend:
+    build:
+      context: backend
+      target: develop
+    env_file: ./backend/.env
+    volumes:
+      - ./backend:/app
+      - node_modules:/app/node_modules
+    command: /bin/sh -c "node ace generate:key; node ace migration:run --force && node ace serve --watch"
+    depends_on:
+      db:
+        condition: service_healthy
+volumes:
+  node_modules: {}