Six-beat React splash renders recognition/locked as dead-black: beat machine never advances, match-invert and locked-overlay branches gated shut, no degraded path

A six-beat cinematic splash (flood → arrest → anchor → recognition → locked → invitation) rendered the recognition and locked/anchor beats as flat dead-black frames. Playwright DOM probes showed non-matched rows correctly dimming (row opacity 1.0 → 0.35 → 0.05) but the "bright" path never firing: madder-colored nodes stayed at 2 (only an off-screen CTA element) across beats 1-5. Matched rows never inverted to the black-on-madder terminal-selection style, the locked-records overlay never mounted, and the documented zero-match degraded branch (dim to 0.25 + "you're first" callout) also never fired.