- Change _get_stats_file_path() to use get_settings_dir()/stats/ instead of
first loras root directory
- Add _migrate_from_old_location() to copy existing stats from loras root
to new location on first access, then clean up old file
- Add 'stats' to update protection skip lists (clean, extract, tracking)
to prevent data loss during ZIP/git upgrades in portable mode
- Add usage_stats entry to backup targets and restore resolver so stats
are included in automatic snapshots
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
