feat: download ROS bridge images from R2 and show startup progress

src/main/visualizationProgress.ts

@@ -0,0 +1,7 @@
+import { AsyncLocalStorage } from 'node:async_hooks'
+
+export const visualizationProgress = new AsyncLocalStorage<(message: string) => void>()
+
+export function reportVisualizationProgress(message: string): void {
+  visualizationProgress.getStore()?.(message)
+}