修复: @任务联想源隔离 store.tasks 污染 + DirAuthDialog 拒绝二次确认 + 看板销账(AC弱模型机制 3/5 已落地核对)

src/components/ai/ChatInput.vue

@@ -346,6 +346,8 @@ function detectMentionTrigger() {
         mentionStart.value = i
         mentionOpen.value = true
         mentionIndex.value = 0
+        // P1-g: 用户首次进入 @ 联想即懒加载全量任务候选(幂等,缓存判重;不在 computed 副作用内调用)
+        void ensureTaskSuggestions()
         return
       }
       // 形如 a@b:前字符非空白 → 不是 mention 触发符,继续向前扫也只会找到更早的 @,
@@ -403,6 +405,19 @@ const pendingMentionSpans = ref<MentionSpan[]>([])
 const MENTION_TASK_LIMIT = 50
 const projectTasksCache = ref<Map<string, TaskRecord[]>>(new Map())
 
+// P1-g: @任务联想候选源隔离 store.tasks(反映 Tasks 视图筛选+分页子集)。
+// 懒加载全量未删任务(taskApi.list() 无参=全量)+ 缓存;首次 @ 触发拉取,失败空数组占位防反复重试。
+const taskSuggestionCache = ref<TaskRecord[] | null>(null)
+async function ensureTaskSuggestions(): Promise<void> {
+  if (taskSuggestionCache.value) return
+  try {
+    taskSuggestionCache.value = await taskApi.list()
+  } catch (e) {
+    taskSuggestionCache.value = []
+    console.error('[ChatInput] 加载任务联想失败:', e)
+  }
+}
+
 /** 拉取指定项目的任务并缓存(已缓存则跳过);失败静默降级为空数组(不阻塞 enrichment 渲染) */
 async function ensureProjectTasks(projectId: string): Promise<void> {
   if (projectTasksCache.value.has(projectId)) return
@@ -564,7 +579,7 @@ const mentionQuery = computed(() => {
 const mentionItems = computed<MentionItem[]>(() => {
   const q = mentionQuery.value.trim().toLowerCase()
   const projects = (projectsStore.projects || []) as ProjectRecord[]
-  const tasks = (projectsStore.tasks || []) as TaskRecord[]
+  const tasks = (taskSuggestionCache.value ?? []) as TaskRecord[]
   const match = (s: string) => !q || s.toLowerCase().includes(q)
   const projectItems: MentionItem[] = projects
     .filter(p => match(p.name) || match(p.description || ''))
@@ -606,7 +621,7 @@ const mentionItems = computed<MentionItem[]>(() => {
 /** 联想候选总数(未过滤,用于区分"无匹配" vs "空") */
 const mentionTotal = computed(() =>
   ((projectsStore.projects || []) as ProjectRecord[]).length
-  + ((projectsStore.tasks || []) as TaskRecord[]).length
+  + (taskSuggestionCache.value?.length ?? 0)
   + ((projectsStore.ideas || []) as IdeaRecord[]).length,
 )