Fix git path missing or empty (#6116)

* Optimize directory_missing_or_empty function

Replace inefficient os.listdir() with os.scandir() and next() to check
if directory is empty. This avoids reading entire directory contents
into memory when we only need to know if any entry exists.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

* Add unit tests for directory_missing_or_empty function

Add comprehensive test coverage for the optimized directory_missing_or_empty
function, testing empty directories, directories with content, non-existent
paths, and files (non-directories).

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

* Apply suggestions from code review

Co-authored-by: Mike Degatano <michael.degatano@gmail.com>

---------

Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Mike Degatano <michael.degatano@gmail.com>

tests/utils/test_utils_init.py

@@ -4,7 +4,7 @@ import os
 from pathlib import Path
 import tempfile
 
-from supervisor.utils import get_latest_mtime  # Adjust the import as needed
+from supervisor.utils import directory_missing_or_empty, get_latest_mtime
 
 
 def test_get_latest_mtime_with_files():
@@ -83,3 +83,32 @@ def test_get_latest_mtime_empty_directory():
         latest_mtime, latest_path = get_latest_mtime(tmpdir)
         assert latest_path == tmpdir
         assert latest_mtime > 0
+
+
+def test_directory_missing_or_empty():
+    """Test directory_missing_or_empty function."""
+    with tempfile.TemporaryDirectory() as tmpdirname:
+        tmpdir = Path(tmpdirname)
+
+        # Test empty directory
+        assert directory_missing_or_empty(tmpdir) is True
+
+        # Test directory with file
+        test_file = tmpdir / "test.txt"
+        test_file.write_text("test content")
+        assert directory_missing_or_empty(tmpdir) is False
+
+        # Test directory with subdirectory
+        test_file.unlink()
+        subdir = tmpdir / "subdir"
+        subdir.mkdir()
+        assert directory_missing_or_empty(tmpdir) is False
+
+        # Test non-existent path
+        non_existent = tmpdir / "does_not_exist"
+        assert directory_missing_or_empty(non_existent) is True
+
+        # Test file (not directory)
+        subdir.rmdir()
+        test_file.write_text("test content")
+        assert directory_missing_or_empty(test_file) is True