重构: 前端 composable 拆分+详情页 Markdown 渲染+流式 memo+状态同步+bug 修复

- composables/useMarkdown 抽(AiChat 复用)+ai/* 流式核心+useAiSend catch 回滚 user msg(B-21)+useAiStream 超时文案(B-03)+useAiConversations 切换 token(FR-R1)
- views/TaskDetail 新建(F-02)+描述 md+mdReady 响应式+字段同行布局(B-24/31)
- views/ProjectDetail 多选审批 UI(F-01)+描述 md+mdReady+字段同行(B-25/31)
- views/Ideas+Knowledge 描述 md+mdReady(B-25)
- views/Tasks 项目切换联动(B-29)+task 详情跳转
- components/AiChat toast 失败提示(B-20)+流式块级 memo(ARC-08)+clean UI(AR-7)+stop 兜底(AR-5)
- components/ToolCard 审批卡片可读化(AR-3)
- stores useAiStore barrel(ARC-04)+del settings mock(ARC-01)+approve options(R-PD-5)
- i18n aiTool/nav 中英对称(AR-3/9)+删 nav.decisions 死链(ARC-02)
- router /tasks/:id(F-02)+global.css selection 可见(R-260615-01)+api task detail+App 删 decisions nav

src/stores/project.ts

@@ -19,6 +19,8 @@ const state = reactive({
     title: string
     description: string
     options: string[]
+    /** F-260615-01: single(缺省)/multiple */
+    select_type?: 'single' | 'multiple'
   } | null,
   loading: false,
   error: null as string | null,
@@ -244,16 +246,31 @@ function createStore() {
     state.liveEvents = []
   }
 
-  async function approveHumanApproval(decision: string, comment?: string) {
+  /**
+   * 发送审批响应。
+   * - 单选(select_type=single 或缺省):传 decision 单值,decisions 留空;
+   * - 多选(select_type=multiple):传 decisions 数组。
+   * F-260615-01: 新增 decisions/select_type 透传,与后端 IPC 签名对齐。
+   */
+  async function approveHumanApproval(
+    decision: string,
+    comment?: string,
+    decisions?: string[],
+  ) {
     if (!state.pendingApproval) return
 
     try {
       // 调用 IPC 命令发送审批响应
+      // R-PD-5: 透传 options 闭环后端校验(options 非空时 decision 必须 ∈ options，否则 IPC 报错)。
+      // options 来自已收到的 HumanApprovalRequest 事件 payload(IPC 无法访问节点 config)。
       await invoke('approve_human_approval', {
         execution_id: state.pendingApproval.execution_id,
         node_id: state.pendingApproval.node_id,
         decision,
-        comment
+        comment,
+        options: state.pendingApproval.options ?? [],
+        decisions: decisions ?? [],
+        selectType: state.pendingApproval.select_type ?? 'single', // Tauri camelCase→snake_case 自动转 select_type
       })
 
       // 清除待审批状态