[bug] Add special handling for windows to git utils

Author: barisgit

kicad_lib_manager/utils/git_utils.py

@@ -3,6 +3,7 @@
 Handles Git hooks directory detection and safe hook management.
 """
 
+import os
 import subprocess
 from datetime import datetime
 from pathlib import Path
@@ -76,8 +77,8 @@ def backup_existing_hook(hook_path: Path) -> Path:
     # Copy the file content
     backup_path.write_text(hook_path.read_text(encoding="utf-8"))
 
-    # Preserve executable permissions
-    if hook_path.stat().st_mode & 0o111:  # Check if executable
+    # Preserve executable permissions (Unix-like systems only)
+    if os.name != 'nt' and hook_path.stat().st_mode & 0o111:  # Not Windows and executable
         backup_path.chmod(0o755)
 
     return backup_path

tests/test_git_utils.py

@@ -2,6 +2,7 @@
 Tests for Git utility functions.
 """
 
+import os
 from unittest.mock import Mock, patch
 
 import pytest
@@ -41,7 +42,10 @@ def test_backup_existing_hook(self, tmp_path):
         assert backup_path != hook_file
         assert backup_path.read_text() == hook_content
         assert backup_path.name.startswith("post-merge.backup.")
-        assert backup_path.stat().st_mode & 0o111  # Check executable bit
+
+        # Check executable bit only on Unix-like systems
+        if os.name != 'nt':  # Not Windows
+            assert backup_path.stat().st_mode & 0o111  # Check executable bit
 
     def test_merge_hook_content_new_content(self):
         """Test merging when no KiLM content exists."""