* Moved `TrackStreamInfo` class definition from `download.py` to `downloader.py`.
* Removed redundant `dataclass` import from `download.py`.
* Updated import statements to maintain clarity and organization.
- Add api_rate_limit_batch_size and api_rate_limit_delay_sec to Settings (cfg.py)
- Move validate_session() and is_authentication_error() to Tidal class (config.py)
- Update _load_albums_with_rate_limiting() to use config values instead of hardcoded 20/3
- Update _handle_album_load_error() to use Tidal.is_authentication_error()
- Remove _validate_session() from gui.py (now uses Tidal.validate_session())
- Addresses maintainer feedback: configurable tweaking variables and proper separation of concerns
- Resolved conflict in dialog_settings.py (kept both cb_use_primary_album_artist and cb_mark_explicit checkboxes)
- Fixed code quality issues found by make check:
* Removed duplicate on_download_album_from_track function (F811)
* Updated isinstance calls to use X | Y syntax instead of (X, Y) (UP038)
* Fixed unused loop variable album_stub (B007)
* Applied automatic formatting fixes (black, prettier, trailing whitespace)
- Only remaining issue is C901 complexity warning in on_download_all_albums_from_playlist (expected per maintainer feedback)
* Introduced `MetadataTargetUPC` enum for target metadata tags.
* Added `METADATA_LOOKUP_UPC` dictionary for mapping file formats to UPC tags.
* Updated `Metadata` class to include `target_upc` for dynamic UPC tag assignment.
* Enhanced `Settings` class to allow configuration of `metadata_target_upc`.
* Updated `format_path_media` and related functions to accept customizable delimiters for artist names.
* Modified `Settings` class to include `filename_delimiter_artist` and `filename_delimiter_album_artist`.
* Enhanced `name_builder_artist` and `name_builder_album_artist` functions to utilize the new delimiters.
* Introduced `metadata_delimiter_artist` and `metadata_delimiter_album_artist` settings.
* Updated `name_builder_artist` and `name_builder_album_artist` functions to utilize the new delimiters.
* This allows users to specify their preferred delimiter for artist names in metadata.
Introduces a new configuration option, `metadata_write_url`, to control whether the media file URL is included in metadata. Updates logic to respect this setting.
- ✨ **Feature**: Adds `metadata_write_url` to enable/disable URL writing in metadata.
- 🔧 **Logic Update**: Adjusts URL handling to check the new setting before including it.
- 📝 **Documentation**: Updates help descriptions to explain the new option.
This change improves flexibility in metadata customization.
Robert Honz