feat: add docker-compose for local database setup, example .env

docker-compose.yaml

@@ -0,0 +1,15 @@
+services:
+  db:
+    image: postgres:17
+    restart: unless-stopped
+    environment:
+      POSTGRES_USER: appcut
+      POSTGRES_PASSWORD: appcutthegoat
+      POSTGRES_DB: appcut
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    ports:
+      - "5432:5432"
+
+volumes:
+  postgres_data: