--deny warnings was a no-op (not a valid category); the correct flag
is --deny-warnings. Fixed all 8 pre-existing warnings and removed
every biome-ignore from source and test files. Simplified the check
script to zero-tolerance: any biome-ignore now fails the build.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The button's onClick stopped mouse event propagation, but keyboard
Enter/Space fired a separate keydown event that bubbled to the
combatant row's onKeyDown, opening the stat block side panel instead
of arming/confirming the button.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
