fix: skip all files under .git directory during partitioning to avoid unsupported file type errors

utils/document_loader.py

@@ -36,7 +36,7 @@ def convert_files_to_txt(src_dir, dst_dir):
     # Add detailed logging for skipped sentences
     def log_skipped_sentences(elements):
         for element in elements:
-            if element.type == "NarrativeText" and len(element.text.split()) < 5:
+            if hasattr(element, 'type') and element.type == "NarrativeText" and len(element.text.split()) < 5:
                 logging.debug(f"Skipped sentence: {element.text}")
         return elements
 
@@ -45,8 +45,8 @@ def convert_files_to_txt(src_dir, dst_dir):
     for root, dirs, files in os.walk(src_dir):
         for file in files:
             file_path = os.path.join(root, file)
-            if file_path.endswith('.git/index'):
-                logging.debug(f"Skipping .git/index file: {file_path}")
+            if '.git' in file_path:
+                logging.debug(f"Skipping .git directory file: {file_path}")
                 continue
             logging.debug(f"Partitioning file: {file_path}")
             try: