- Add PSDK floating window text model for UI display
- Add PSDK input box text set request for text input control
- Add PSDK method enumeration for widget and speaker operations
- Add PSDK UI resource upload result model for resource management
- Add PSDK widget value set request for widget control
- Add speaker audio play start request and progress tracking
- Add speaker TTS play start request and progress tracking
- Add speaker replay, stop, mode set, and volume set requests
- Add AbstractPsdkService base class for PSDK service implementation
- Add PsdkController and PsdkService for handling PSDK operations
- Add SpeakerPlayDTO for speaker play data transfer
- Update StorageConfigGetModuleEnum to include PSDK_UI_RESOURCE module
- Fix StorageConfigGetModuleEnum.find() method to be static
- Update ChannelName and EventsMethodEnum for PSDK support
- Update BizCodeEnum with new business codes
- Update application.yml configuration for PSDK features
- Update pom.xml dependencies for PSDK functionality

Implement OSS browser features: add methods for listing folders, checking object existence, and copying objects; create OssBrowserController and FolderTreeDTO.