remove left overs folders with "@" in name

Author: Jason2866

platform.py

@@ -323,7 +323,8 @@ def _handle_existing_tool(
         tool_base_name = os.path.basename(paths['tool_path'])
         packages_dir = os.path.dirname(paths['tool_path'])
 
-        # Remove similar directories with version suffixes FIRST (e.g., xtensa.12232)
+        # Remove similar directories with version suffixes FIRST (e.g., xtensa@src, xtensa.12232)
+        safe_remove_directory_pattern(packages_dir, f"{tool_base_name}@*")
         safe_remove_directory_pattern(packages_dir, f"{tool_base_name}.*")
 
         # Then remove the main tool directory (if it still exists)