Replace the ad-hoc width/height calculation (visible text width + descender padding, right padding, clamped y, x=0 start) with a direct mapping to the rendered HUD label buffer. The hitbox now sits at finalX/finalY with width and height from hudAnimationState.labelWidth/labelHeight (with existing fallbacks), which is how the overlay is actually drawn — so the hitbox and the visible area stay aligned as the HUD animates. Also tidy the debug overlay: - Make it opt-in (globalThis.debugHudHitbox) instead of default-on. - Swap the magenta fill for a blinking green double outline that doesn't obscure piece content while inspecting. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>