- Rename ViewModel → Controller, ViewState → State with @riverpod codegen
- Move state/ → providers/ folder for consistency
- Add post-init device configuration (camera, speaker, maxCallNum, mediaConfig)
- Use MediaConfig.generateByMode based on device capabilities.system (rtos/android)
- Add CallParam.ticket for smartwatch wake-up protocol
- Start audio/camera before call, stop on hangup
- Granular video management based on uploadVideoStreamSelf/Other flags
- Build watch userId from device.imei (w_ prefix)
- Add imei field to DeviceEntity
- Add system field to DeviceCapabilitiesEntity with isRtos/isAndroid helpers