Fix ~790 basedpyright errors across the test suite:
- Type stub subclasses of real production classes with super().__init__()
- Add missing generic type arguments and Dict[str, Any] annotations
- Add None guards before subscript/member access
- Adapt tests to production API changes (removed dead handlers,
PersistentModelCache.get_default, _i18n_filter_added location)
- Add RateLimitError import and exception handling in API methods
- Create _make_request wrapper to surface rate limit errors from downloader
- Add test case to verify rate limit error propagation
- Set default provider as "civarchive_api" for rate limit errors
This ensures rate limit errors are properly propagated and handled throughout the CivArchive client, improving error reporting and allowing callers to implement appropriate retry logic.
- Fix CivArchive model ID redirect logic to only follow redirects when context points to original model
- Rename CivitaiModelMetadataProvider to CivArchiveModelMetadataProvider for consistency
- Reorder fallback metadata providers to prioritize Civitai API over CivArchive API for better metadata quality
- Remove unused asyncio import and redundant logging from metadata sync service
Introduce `_request_json` method for async JSON requests and improved error handling. Add static methods `_normalize_payload`, `_split_context`, `_ensure_list`, and `_build_model_info` to parse and normalize API responses. These changes improve the robustness of the CivArchiveClient by ensuring consistent data structures and handling potential API response issues gracefully.
