chore: update Docker Compose configuration

- Use postgres:18-alpine image

- Update environment variable format

- Rename volume from pgdata to postgres_data

- Increase healthcheck interval to 10s

compose.yaml

@@ -5,23 +5,25 @@ services:
       db:
         condition: service_healthy
     ports:
-      - '3000:3000'
+      - "3000:3000"
     environment:
-      DATABASE_URL: postgres://postgres:postgres@db:5432/postgres
+      - DATABASE_URL=postgres://postgres:postgres@db:5432/postgres
 
   db:
-    image: postgres:18
+    image: postgres:18-alpine
+    # ports:
+    #   - "5432:5432"
     volumes:
-      - pgdata:/var/lib/postgresql/data
+      - postgres_data:/var/lib/postgresql
     environment:
       POSTGRES_USER: postgres
       POSTGRES_PASSWORD: postgres
       POSTGRES_DB: postgres
     healthcheck:
-      test: [ 'CMD', 'pg_isready', '-U', 'postgres' ]
-      interval: 5s
+      test: [ "CMD", "pg_isready", "-U", "postgres" ]
+      interval: 10s
       timeout: 5s
       retries: 5
 
 volumes:
-  pgdata:
+  postgres_data: