- Add is_dirty flag to track if statistics have changed
- Only write stats file when data actually changes
- Add enable_usage_statistics setting in ComfyUI settings
- Skip backend requests when usage statistics is disabled
- Fix standalone mode compatibility for MetadataRegistry
Fixes#826
fix(example_images_download_manager): re-raise specific exception on download error
refactor(usage_stats): define constants locally to avoid conditional imports
test(example_images_download_manager): update exception handling in download tests
test(example_images_file_manager): differentiate between os.startfile and subprocess.Popen in tests
test(example_images_paths): ensure valid example images root with single-library mode
test(usage_stats): use string literals for metadata payload to avoid conditional imports
