- Added `ModelState` for detailed per-model runtime status management.
- Implemented methods to manage model-specific error handling, quotas, and recovery logic.
- Enhanced aggregated availability calculations for auth entries with model-specific states.
- Updated retry and recovery logic to operate separately for models and auth entries.
- Improved selector logic to filter based on model states and availability.
- Updated loop iteration in `AuthSelector` to correct index management for selecting candidates.
- Fixed cursor index reset condition for large values to prevent overflow.
- Removed unnecessary conditional reassignment of `allowRemote` in management handler for clarity and correctness.
- Renamed field `NextRefreshAfter` to `NextRetryAfter` across `AuthManager`, `types`, and selector logic.
- Updated references to ensure proper handling of retry timing logic.
- Improved code readability and clarified retry behavior for different auth states.
