Final Verification Wave found two real blockers:
1. T58 RequestChoiceModal.tsx was marked complete but did NOT exist on disk.
2. request-choice locked 6-kind enum was shipped as 5 (missing 'coin-flip').
Remediation:
- Build RequestChoiceModal.tsx with role=dialog, aria-modal=true, ESC/backdrop close, kind-specific input UI for all 6 kinds (rps / coin-flip / piece / square / column / row); 4 tests
- Add 'coin-flip' to:
- request-choice primitive paramsSchema enum
- PendingChoice.kind union (schema.ts + util/pending-choices.ts)
- WS protocol ChoiceKindSchema (server/protocol.ts)
- choice-timeout.firstDefaultForKind (defaults to 'heads')
- broadcast.isValidChoiceValue (accepts 'heads' | 'tails')
- AutoChoiceResolver: deterministic alternating heads/tails for coin-flip
T68 e2e tests remain .skip()'d pending UI integration (modal-into-GameView wiring + activate-descriptor UI) — a follow-up task. The sentinel test asserts the gap exists so when integration lands, skips lift in the documented order.
Tests: 2740 -> 2744 (+4). bun run check exit 0.
- Add buttons in editor header to switch between 'form' and 'visual' modes
- Persist user's preferred mode to localStorage
- Wrap main layout area in conditional render
- In 'visual' mode, center/right column replaced with VisualBuilderPane
- Adds suite of UI tests with vitest + node testing with mocked localStorage
