Initial commit: add .gitignore and README

docker-compose.test.yml

@@ -0,0 +1,24 @@
+version: '3.8'
+
+services:
+  postgres-test:
+    image: postgres:15-alpine
+    container_name: dbis_core_test_db
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: postgres
+    ports:
+      - "5434:5432"  # Use different port to avoid conflicts
+    volumes:
+      - postgres-test-data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U postgres"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+    command: postgres -c log_statement=all
+
+volumes:
+  postgres-test-data:
+