Function screenshot

src/utils/computerUse/executor.ts:399–418

* Pre-size to `targetImageSize` output so the API transcoder's early-return * fires — no server-side resize, `scaleCoord` stays coherent. See * packages/desktop/computer-use-mcp/COORDINATES.md.

(opts: {
      allowedBundleIds: string[]
      displayId?: number
    })

     * packages/desktop/computer-use-mcp/COORDINATES.md.
     */
    async screenshot(opts: {
      allowedBundleIds: string[]
      displayId?: number
    }): Promise<ScreenshotResult> {
      const d = cu.display.getSize(opts.displayId)
      const [targetW, targetH] = computeTargetDims(
        d.width,
        d.height,
        d.scaleFactor,
      )
      return drainRunLoop(() =>
        cu.screenshot.captureExcluding(
          withoutTerminal(opts.allowedBundleIds),
          SCREENSHOT_JPEG_QUALITY,
          targetW,
          targetH,
          opts.displayId,
        ),
      )
    },

    async zoom(
      regionLogical: { x: number; y: number; w: number; h: number },