feat: rwfx 任务深链支持目的树闸门 + 任务↔对话(1:N)绑定

后端
- config.yaml 新增 task_deeplink 段：完整 URL（无 base）+ test/delete_test 两个独立测试开关
  + mock 假数据（目的树 / delete 结果，可随时编辑）
- 新增 TaskDeeplinkConfig 模型挂到 AppConfig；新增公开只读接口
  GET /api/public/config/task-deeplink 暴露给前端（/api/public 已在鉴权白名单）

前端
- 登录深链 goPath=rwfx 进入「任务工作区」：左侧按 metadata.taskId 过滤的对话列表
  （新建对话 / 编辑 / 下一步 / 清除任务记录）+ 右侧问答
- 新建对话（含首次进入）顶部展示目的树闸门：有数据弹覆盖确认→调 delete，success 才开始问答；
  恢复历史对话不跑闸门
- 新建 thread 打 metadata.taskId 标签实现「一个任务挂多个对话」(1:N)
- 地址/开关/假数据全部走后端配置，拿不到时用内置默认值兜底；test/delete_test=true 走假数据

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend-web/src/pages/StrategyRoutes.tsx

@@ -11,6 +11,11 @@ import TaskPgFrom from "@/strategy-components/components/task-components/TaskPgF
 import TaskTyFrom from "@/strategy-components/components/task-components/TaskTyFrom";
 import TaskXkFrom from "@/strategy-components/components/task-components/TaskXkFrom";
 import TaskAnalyzes from "@/strategy-components/components/task-components/TaskAnalyzes";
+import {
+  TaskFxChat,
+  TaskFxIndexResolver,
+  TaskFxWorkspace,
+} from "@/strategy-components/components/task-components/TaskFxWorkspace";
 import { ActionAnalyzes } from "@/strategy-components/components/task-components/ActionAnalyzes";
 import KnowledgeBaseResourceManagement from "@/strategy-components/components/resource-management/KnowledgeBaseResourceManagement";
 import NetworkActorResourceManagement from "@/strategy-components/components/resource-management/NetworkActorResourceManagement";
@@ -162,12 +167,26 @@ export default function StrategyRoutes() {
                   </ChatRuntime>
                 }
               />
+              {/* 任务FX：任务工作区（左对话列表 1:N + 右问答；新建对话顶部目的树闸门）。 */}
               <Route
-                path="plan-task/plan-task-fx/agent/:agent_id/chats/:thread_id"
+                path="plan-task/plan-task-fx/agent/:agent_id/chats"
                 element={
-                  <TaskEmbeddedAgentChat taskBase="/page/strategy/task-management/plan-task/plan-task-fx" />
+                  <TaskFxWorkspace taskBase="/page/strategy/task-management/plan-task/plan-task-fx" />
                 }
-              />
+              >
+                <Route
+                  index
+                  element={
+                    <TaskFxIndexResolver taskBase="/page/strategy/task-management/plan-task/plan-task-fx" />
+                  }
+                />
+                <Route
+                  path=":thread_id"
+                  element={
+                    <TaskFxChat taskBase="/page/strategy/task-management/plan-task/plan-task-fx" />
+                  }
+                />
+              </Route>
               <Route
                 path="plan-task/plan-task-action"
                 element={