d6b04d71a0
- Add a new `useCameraPreview` hook for managing camera access and video stream handling. - Integrate camera preview capabilities into the AssistantPage, allowing users to toggle video stream visibility. - Introduce a new toggle for enabling visual understanding, which activates the video stream preview alongside voice functionalities. - Update the DebugDrawer component to support switching between chat and video views based on the visual understanding setting. - Refactor related components to accommodate the new camera features and improve user interaction during debugging.