优化: CR-29 ai.ts messages 软上限+knowledge 异步竞态序号/错误统一

①ai.ts MESSAGE_CAP=200 watch(messages.length) 拦截 push 超限 splice 最早条滚动淘汰(条件 oldLen>0 && newLen-oldLen<=2 规避切换对话整体替换大跳变/首次加载误截断),现有 composables push 逻辑零改动;
②knowledge.ts _itemsReqSeq/_configReqSeq 模块级竞态序号(loadList/loadCandidates/search/loadConfig 请求捕获 seq,响应回序号不匹配丢弃旧响应含错误分支,loading 仅最新请求复位);
③create/updateStatus/archive/saveConfig/extractNow 加 try/catch 统一塞 state.error(与 load*/search 一致,CR-28 Knowledge.vue banner 消费)。
批11 agent,vue-tsc 0

src/stores/knowledge.ts

@@ -19,6 +19,14 @@ const state = reactive({
   error: null as string | null,
 })
 
+// ── 异步竞态保护(请求序号,类似 ai.ts messages 的 switch token 模式) ──
+// 快速连点(切换筛选/连续检索/重连)时,旧响应晚到会覆盖新响应。序号自增,
+// 请求发起时捕获序号,响应回时比对:非最新请求的响应直接丢弃,只取最新。
+// items 序号覆盖 loadList/loadCandidates/search;candidates 与 items 共用同一队列
+// (loadList/search 写 items,loadCandidates 写 candidates),故 items 序号也兜底 candidates。
+let _itemsReqSeq = 0
+let _configReqSeq = 0
+
 // 7 种知识类型(snake_case,与后端 KnowledgeKind 对齐)
 // 仅存 key + icon;展示文案(label)走 i18n: $t('knowledge.kind.<key>')
 export const KNOWLEDGE_KINDS = [
@@ -45,81 +53,118 @@ export function parseTags(tags: string | null): string[] {
 export function useKnowledgeStore() {
   // ── 加载列表(默认排除 archived) ──
   async function loadList(status?: string) {
+    const seq = ++_itemsReqSeq
     state.loading = true
     state.error = null
     try {
-      state.items = await knowledgeApi.list(status ?? null)
+      const result = await knowledgeApi.list(status ?? null)
+      if (seq !== _itemsReqSeq) return // 旧响应丢弃,只取最新
+      state.items = result
     } catch (e: any) {
+      if (seq !== _itemsReqSeq) return // 旧请求的失败不污染当前视图
       state.error = e?.toString() ?? '加载知识库失败'
     } finally {
-      state.loading = false
+      if (seq === _itemsReqSeq) state.loading = false
     }
   }
 
   // ── 加载审核收件箱(候选列表) ──
   async function loadCandidates() {
+    const seq = ++_itemsReqSeq
     try {
-      state.candidates = await knowledgeApi.listCandidates()
+      const result = await knowledgeApi.listCandidates()
+      if (seq !== _itemsReqSeq) return // 旧响应丢弃,只取最新
+      state.candidates = result
     } catch (e: any) {
+      if (seq !== _itemsReqSeq) return
       state.error = e?.toString() ?? '加载收件箱失败'
     }
   }
 
   async function search(query: string, kind?: string) {
+    const seq = ++_itemsReqSeq
     state.loading = true
     state.error = null
     try {
-      state.items = await knowledgeApi.search({ query, kind })
+      const result = await knowledgeApi.search({ query, kind })
+      if (seq !== _itemsReqSeq) return // 旧响应丢弃,只取最新
+      state.items = result
     } catch (e: any) {
+      if (seq !== _itemsReqSeq) return
       state.error = e?.toString() ?? '检索失败'
     } finally {
-      state.loading = false
+      if (seq === _itemsReqSeq) state.loading = false
     }
   }
 
   async function create(input: CreateKnowledgeInput) {
-    const record = await knowledgeApi.create(input)
-    // 手动录入默认 candidate,刷新收件箱。
-    // create 已成功返回 record,刷新失败不应污染成功语义 —— 直接走原始 API + 非阻塞 console.warn,
-    // 不经 loadCandidates(后者会写 state.error,污染 create 成功语义)。
     try {
-      state.candidates = await knowledgeApi.listCandidates()
+      const record = await knowledgeApi.create(input)
+      // 手动录入默认 candidate,刷新收件箱。
+      // create 已成功返回 record,刷新失败不应污染成功语义 —— 直接走原始 API + 非阻塞 console.warn,
+      // 不经 loadCandidates(后者会写 state.error,污染 create 成功语义)。
+      try {
+        state.candidates = await knowledgeApi.listCandidates()
+      } catch (e: any) {
+        console.warn('create 后刷新收件箱失败(非阻塞)', e?.toString?.() ?? e)
+      }
+      return record
     } catch (e: any) {
-      console.warn('create 后刷新收件箱失败(非阻塞)', e?.toString?.() ?? e)
+      state.error = e?.toString() ?? '创建知识失败'
+      return null
     }
-    return record
   }
 
   async function updateStatus(id: string, status: string) {
-    await knowledgeApi.updateStatus(id, status)
-    // 从 items 和 candidates 中同步移除
-    state.items = state.items.filter(k => k.id !== id)
-    state.candidates = state.candidates.filter(k => k.id !== id)
+    try {
+      await knowledgeApi.updateStatus(id, status)
+      // 从 items 和 candidates 中同步移除
+      state.items = state.items.filter(k => k.id !== id)
+      state.candidates = state.candidates.filter(k => k.id !== id)
+    } catch (e: any) {
+      state.error = e?.toString() ?? '更新状态失败'
+    }
   }
 
   async function archive(id: string) {
-    await knowledgeApi.archive(id)
-    state.items = state.items.filter(k => k.id !== id)
-    state.candidates = state.candidates.filter(k => k.id !== id)
+    try {
+      await knowledgeApi.archive(id)
+      state.items = state.items.filter(k => k.id !== id)
+      state.candidates = state.candidates.filter(k => k.id !== id)
+    } catch (e: any) {
+      state.error = e?.toString() ?? '归档失败'
+    }
   }
 
   // ── 配置 ──
   async function loadConfig() {
+    const seq = ++_configReqSeq
     try {
-      state.config = await knowledgeApi.getConfig()
+      const result = await knowledgeApi.getConfig()
+      if (seq !== _configReqSeq) return // 旧响应丢弃,只取最新
+      state.config = result
     } catch (e: any) {
+      if (seq !== _configReqSeq) return
       state.error = e?.toString() ?? '加载配置失败'
     }
   }
 
   async function saveConfig(config: KnowledgeConfig) {
-    await knowledgeApi.saveConfig(config)
-    state.config = config
+    try {
+      await knowledgeApi.saveConfig(config)
+      state.config = config
+    } catch (e: any) {
+      state.error = e?.toString() ?? '保存配置失败'
+    }
   }
 
   async function extractNow() {
-    await knowledgeApi.extractNow()
-    await loadCandidates()
+    try {
+      await knowledgeApi.extractNow()
+      await loadCandidates()
+    } catch (e: any) {
+      state.error = e?.toString() ?? '立即抽取失败'
+    }
   }
 
   // ── 生命线:详情 / 编辑 / 事件查询(按需调用,不入全局 state) ──