Mount schema.sql in postgres init

docker-compose.minimal.yml

@@ -9,6 +9,7 @@ services:
       POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-braindb2026}
     volumes:
       - postgres_data:/var/lib/postgresql/data
+      - ./infra/database/schema.sql:/docker-entrypoint-initdb.d/01_schema.sql:ro
     ports:
       - "5433:5432"
     networks: