refining ci pipeline

.gitlab-ci.yml

@@ -30,8 +30,8 @@ lint:
   stage: test
   script:
     - source $VIRTUAL_ENV/bin/activate
-    - pip install flake8
-    - flake8 backend/  # Run linting for code quality
+    - pip install pre-commit  # Install pre-commit in the CI environment
+    - pre-commit run --all-files  # Run all pre-commit hooks on the entire codebase
 
 deploy:
   stage: deploy