Add per-session zoom state, route the zoom factor through the desktop preview bridge, and apply it to the Electron WebContentsView before preview capture so screenshot and annotation coordinates stay on the native preview surface.
Tested:
- cd desktop && bun run test -- src/components/browser/BrowserSurface.test.tsx src/stores/browserPanelStore.test.ts src/components/workbench/WorkbenchPanel.webview.test.tsx src/lib/previewBridge.test.ts src/lib/desktopHost/electronHost.test.ts
- cd desktop && bun test electron/services/preview.test.ts
- cd desktop && bun run lint
- cd desktop && bun run build
- cd desktop && bun run check:electron
Not-tested:
- cd desktop && bun run check:desktop (blocked by existing MessageList relative-time assertion and TabBar AbortSignal errors)
Confidence: medium
Scope-risk: moderate
e64cd80662