1. Presentation recovery

• [x] 1.1 Reconcile visible entities by stable ID from the restored engine snapshot, including glyph, facing, and control markers.
• [x] 1.2 Clear stale SINK/DEFEAT effect, tween, and shake state when Undo restores the prior turn.
• [x] 1.3 Verify reset restores native entities/facing and clears stale effects after both death and Undo.

2. Regression coverage

• [x] 2.1 Add focused Node tests for death, Undo, entity restoration, facing/control markers, and effect cleanup; the 149-test Node suite is green.
• [x] 2.2 Verify the focused mobile proof 05 death→Undo state immediately and after the delayed presentation frame, with screenshots/state evidence and no console errors.
• [x] 2.3 Add a real mobile visual pixel assertion proving the restored MIAU glyph is present and the stale red death shadow is absent.
• [x] 2.4 Run the production build and record the focused browser regression result.