Score readouts now react to mutations: ScorePulse drives a triangular
1.0 → 1.1 → 1.0 scale on the HUD score over MOTION_SCORE_PULSE_SECS,
and jumps of at least SCORE_FLOATER_THRESHOLD points spawn a floating
"+N" that drifts up 40px and fades over 2× the pulse duration before
despawning. Detection runs after GameMutation so the visuals trail the
state update by exactly one frame.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
funman300
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