Feature Request: Add command support for VirtualCam settings

### Feature Request Type

RPC Request

### Feature Request Type (Other)

_No response_

### Requested Feature

GetVirtualCamStatus；ToggleVirtualCam；StartVirtualCam；StopVirtualCam；
**But missing 'SetVirtualCam' !!**

<img width="1343" height="510" alt="Image" src="https://github.com/user-attachments/assets/291a8563-16c9-4ecc-a124-b0c2099c0d9c" />



### Requested Feature Usage Scenario

·