Add comprehensive testing for preview clip and status handling
- Implement unit tests for PreviewClipRequest/PreviewStatusRequest serialization and deserialization. - Add tests for PreviewDao (insert, update, batch retrieval, and status-based queries). - Extend Actix-web integration tests for `/video/preview/status` endpoint scenarios. - Introduce in-memory TestPreviewDao for mock database interactions. - Update README with new config parameters for preview clips.
This commit is contained in: