feat: Introduce isort and Python-based code quality tools (#446)

scripts/git_utils.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python3
+"""Utility functions for git operations."""
+
+import subprocess
+from collections.abc import Sequence
+
+
+def get_modified_python_files() -> Sequence[str]:
+    """Get list of modified Python files from git.
+
+    Returns:
+        Sequence[str]: List of modified Python file paths
+    """
+    git_cmd = ['git', 'diff', '--name-only', '--diff-filter=ACMR', 'HEAD']
+    result = subprocess.run(git_cmd, capture_output=True, text=True, check=True)
+    if not result.stdout.strip():
+        return []
+    return [f for f in result.stdout.splitlines() if f.endswith('.py')]