chore: update pre-commit to use ruff with auto-fix

- Add astral-sh/ruff-pre-commit as official ruff hook
- Enable ruff with --fix for automatic linting fixes
- Add ruff-format for code formatting
- Keep pytest hook for test running

Now pre-commit will automatically fix linting issues and run tests before commits.

.pre-commit-config.yaml

@@ -1,13 +1,13 @@
 repos:
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.4.10
+    hooks:
+      - id: ruff
+        args: [--fix]
+      - id: ruff-format
+
   - repo: local
     hooks:
-      - id: ruff-check
-        name: ruff check
-        entry: ruff check
-        language: system
-        types: [python]
-        stages: [commit]
-
       - id: pytest
         name: pytest
         entry: pytest