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End-to-end coverage for this session's two shipped features. SigStageUnifiedTest (FunctionalTest, no WS — both pass locally): - the sig stage renders INSIDE .room-hex-pane on green --duoUser felt (.has-sig-stage), the overlay is a descendant of the hex pane, the dark .sig-backdrop is gone, and the overlay bg is not a translucent-black wash; - OK'ing a card freezes the stage and reveals the DRY _stat_face.html — .stat-face-title + .stat-chip-rank populate (the old reduced block had neither; proves the populateStatExtras wiring). RoomScrollLiveRefreshTest (ChannelsFunctionalTest, @tag channels): - with the room open, a server-side record() of a new GameEvent grows the feed (#id_drama_scroll .drama-event 1 → 2) WITHOUT a reload, via the record() on_commit broadcast → RoomConsumer.scroll_update relay → room-scroll.js re-fetch+swap. Validated in the CI channels stage (needs a cross-process channel layer); the plumbing is already green via the consumer-relay + record-hook + scroll_status ITs. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>