Implement a new GetString method using HttpClient for better control over
HTTP requests including proxy handling, SSL validation, and timeout management.
This replaces the previous Http.Get calls throughout the UAKino module to
standardize request handling and improve reliability.
Adds complete UAKino integration with:
- Controller for handling movie/series requests and playback
- ModInit for module configuration and initialization
- Models for search results, playlists, and player data
- OnlineApi for event registration
- UAKinoInvoke for core functionality (search, playlist parsing, player handling)
- Project configuration and manifest
The module supports:
- Search functionality with caching
- Series episode listing with voice selection
- Movie and series playback
- Proxy management and error handling
- HTML and JSON response formats
