added pre-development files

docker-compose.yml

@@ -0,0 +1,54 @@
+services:
+  app:
+    build:
+      context: .
+      dockerfile: .devcontainer/Dockerfile.backend
+    volumes:
+      - .:/workspace:cached
+    environment:
+      - DATABASE_URL=postgres://postgres:password@db:5432/labgraph
+      - REDIS_URL=redis://redis:6379/0
+    networks:
+      - labgraph-net
+    depends_on:
+      - db
+      - redis
+    command: sleep infinity # Keeps the container alive for VS Code
+
+  db:
+    image: postgres:18-alpine
+    environment:
+      - POSTGRES_DB=labgraph
+      - POSTGRES_PASSWORD=password
+    volumes:
+      - labgraph_pg_data:/var/lib/postgresql
+    networks:
+      - labgraph-net
+
+  redis:
+    image: redis:7-alpine
+    networks:
+      - labgraph-net
+
+  worker:
+    build:
+      context: .
+      dockerfile: .devcontainer/Dockerfile.backend
+    volumes:
+      - .:/workspace:cached
+    environment:
+      - DATABASE_URL=postgres://postgres:password@db:5432/labgraph
+      - REDIS_URL=redis://redis:6379/0
+    depends_on:
+      - db
+      - redis
+    networks:
+      - labgraph-net
+    command: celery -A core worker --loglevel=info
+
+networks:
+  labgraph-net:
+    driver: bridge
+
+volumes:
+  labgraph_pg_data: