Why: Dev #452 selected a frontend pointer lacking the previously merged SurfaceMeta hydration fix and blanked saved-page conversations. Evidence: Independent review and regression red/green receipts are in .task/feature-surface-black-screen-recovery.md; make test/build follow. Impact: Pin the frontend that retains fast-slow and saved-page recovery; no backend, UI token, storage or permission configuration change. Refs: Frontend #68; Dev #454; Dev #452; surface-black-screen-recovery
ui
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