refactor: move git operations into seperate files

backend/app/git/operations/commit.py

@@ -0,0 +1,16 @@
+# git/operations/commit.py
+
+import git
+import logging
+
+logger = logging.getLogger(__name__)
+
+def commit_changes(repo_path, files, message):
+    try:
+        repo = git.Repo(repo_path)
+        repo.index.add(files)
+        repo.index.commit(message)
+        return True, "Successfully committed changes."
+    except Exception as e:
+        logger.error(f"Error committing changes: {str(e)}", exc_info=True)
+        return False, f"Error committing changes: {str(e)}"