优化: aichat 体验收尾(useAiEvents拆分4子域 + AIC-FIX P1队列/mutex/缓存 + i18n残留抽取)

src/components/ai/HelpRequiredCard.vue

@@ -25,7 +25,7 @@
 import { computed, ref, watch, nextTick } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useAiStore } from '../../stores/ai'
-import { pendingHelp } from '../../composables/ai/useAiEvents'
+import { pendingHelp } from '../../composables/ai/useAiPendingState'
 
 // toast 经 emit 转父(保持单一 toast 源,与 MaxRoundsCard 一致)
 const emit = defineEmits<{