feat: started working with api

docker-compose.yml

@@ -1,5 +1,18 @@
 services:
+  db:
+    image: postgres:17-alpine
+    restart: unless-stopped
+    environment:
+      POSTGRES_USER: ${DB_USER:-postgres}
+      POSTGRES_PASSWORD: ${DB_PASSWORD:-postgres}
+      POSTGRES_DB: ${DB_NAME:-postgres}
+    ports:
+      - "${DB_PORT:-5432}:5432"
+    volumes:
+      - db_data:/var/lib/postgresql/data
   app:
     build: .
     ports:
-      - "3900:3000"
+      - "3900:3000"
+volumes:
+  db_data: