Fix browser screenshot capture for parked webviews

packages/app/src/desktop/host.ts

@@ -121,6 +121,10 @@ export interface DesktopBrowserShortcutEvent {
   action: "focus-url";
 }
 
+export interface DesktopBrowserPixelCapturePreparation {
+  token: string;
+}
+
 export interface DesktopBrowserNewTabRequestEvent {
   sourceBrowserId: string;
   url: string;
@@ -144,6 +148,12 @@ export interface DesktopBrowserBridge {
   ) => Promise<string | null>;
   /** Copy element text and/or an image to the system clipboard from main. */
   copyElement?: (payload: { text?: string; imageDataUrl?: string }) => Promise<boolean>;
+  onPrepareForPixelCapture?: (
+    handler: (input: { browserId: string }) => Promise<DesktopBrowserPixelCapturePreparation>,
+  ) => () => void;
+  onRestorePixelCapture?: (
+    handler: (input: DesktopBrowserPixelCapturePreparation) => Promise<void>,
+  ) => () => void;
 }
 
 export interface DesktopInvokeBridge {