Expose the Daytona SDK's ComputerUseService through DaytonaSandbox so
callers can start the virtual desktop, take screenshots, and interact
with mouse/keyboard programmatically.
The new integration test validates the full flow: start the desktop
environment, launch Chromium on DISPLAY=:0, and capture a screenshot
of example.com via the Computer Use API.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>