1. model-resolver tests:
- Unknown models now pass through unchanged (provider model support)
- Removed expectations for warnings on unknown models
- Updated case sensitivity and edge case tests accordingly
- Added tests for provider-like model names (GLM-4.7, MiniMax-M2.1)
2. atomic-writer tests:
- Updated regex to match new temp file format with random suffix
- Format changed from .tmp.{timestamp} to .tmp.{timestamp}.{hex}
- Introduced atomic write functionality for JSON files to ensure data integrity during writes.
- Added recovery mechanisms to read JSON files with fallback options for corrupted or missing files.
- Enhanced existing services to utilize atomic write and recovery features for improved reliability.
- Updated tests to cover new atomic writing and recovery scenarios, ensuring robust error handling and data consistency.
