Step 2 migration: add PostgreSQL schema and read endpoints

docker-compose.yml

@@ -7,6 +7,11 @@ services:
       - POSTGRES_DB=${VG_DB_NAME:-video_games}
       - POSTGRES_USER=${VG_DB_USER:-video_games_user}
       - POSTGRES_PASSWORD=${VG_DB_PASSWORD:-change_me}
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U ${VG_DB_USER:-video_games_user} -d ${VG_DB_NAME:-video_games}"]
+      interval: 5s
+      timeout: 3s
+      retries: 20
     volumes:
       - video_games_data:/var/lib/postgresql/data
 
@@ -17,7 +22,8 @@ services:
     container_name: video-games-api
     restart: unless-stopped
     depends_on:
-      - video-games-db
+      video-games-db:
+        condition: service_healthy
     environment:
       - SERVICE_NAME=video-games-api
       - API_INTERNAL_PORT=3001