- FightPage.vue: store SSE listener refs in array, removeEventListener
on each before close() in disconnectSSE()
- FightScene.ts: add cleanupTimers Set with trackedInterval/trackedTimeout
helpers; replace key setInterval calls (projectile trails, entrance
flames, talking animation, exhaust effects, dimensional shift, hole
fade) with tracked versions; clear all on scene destroy()
- rate-limit.ts: export cleanupInterval handle for graceful shutdown
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
