A cosmetic effects layer on the board svg, fed by the same event
stream that writes the log. Fireballs streak and burst; waterbolts
arc and splash; lightning jags and flickers; teleports shimmer at
both ends; walls rise and fall in dust; stopped attacks flash a
golden shield; hits ring red; misses whiff; other attack spells
sparkle at the caster. Successive visuals from one command stagger by
a beat, everything self-expires, reduced-motion hides the layer
whole, and nothing here touches game state — the effects are mapped
from events in fx.ts and drawn in Board.svelte, online and hotseat
alike.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>