- Add PlayInfo model for TTS and URL content playback requests
- Add SpeakerResponse model for endpoint responses
- Implement client methods: PlayTTS, PlayURL, PlayCustom, PlayNotificationBeep
- Add comprehensive CLI commands for speaker functionality:
- speaker tts: Text-to-Speech with Google TTS and language support
- speaker url: Audio content playback from HTTP/HTTPS URLs
- speaker beep: Simple notification beep sound
- speaker help: Detailed functionality documentation
- Support for volume control (0-100 or current volume)
- Multi-language TTS support (EN, DE, ES, FR, IT, NL, PT, RU, ZH, JA, etc.)
- Custom metadata support for NowPlaying display
- Comprehensive validation and error handling
- Full test suite with XML marshaling/unmarshaling tests
- Complete documentation with API reference and usage examples
- Compatible with ST-10 (Series III) and other supported SoundTouch devices
The /speaker endpoint enables notification and audio content playback,
automatically managing volume restoration and content interruption.
Perfect for home automation, alerts, and custom audio notifications.
