feat(park): 大屏控制页适配 —— 移除语音助手指令、加任务展示/任务刷新

- screen-tab PAGE_COMMANDS：移除 voice_start(语音页已关闭)；增 navigate 任务展示(/tasks)。
- 新增「任务中心」控制组：task_refresh(刷新任务)。

Co-Authored-By: Claude <noreply@anthropic.com>

src/pages/park/screen-tab.tsx

@@ -6,14 +6,18 @@ import { parkApi } from "@/api/park";
 import { useParkTenant } from "./tenant-context";
 import type { DisplayState } from "@/types";
 
-// 页面名与 park-desktop 大屏 PAGE_ALIAS 对齐（home→'/'、twin、ai、screen、wall）
+// 页面名与 park-desktop 大屏 PAGE_ALIAS 对齐（home→'/'、twin、ai、tasks、screen、wall）
 const PAGE_COMMANDS: { action: string; label: string; params?: Record<string, unknown> }[] = [
   { action: "navigate", label: "数据大屏", params: { page: "home" } },
   { action: "navigate", label: "数字孪生", params: { page: "twin" } },
   { action: "navigate", label: "AI 助手", params: { page: "ai" } },
+  { action: "navigate", label: "任务展示", params: { page: "tasks" } },
   { action: "navigate", label: "媒体轮播", params: { page: "screen" } },
   { action: "navigate", label: "企业展示墙", params: { page: "wall" } },
-  { action: "voice_start", label: "语音助手", params: {} },
+];
+// 任务页控制（语音页已关闭，voice_* 不再下发；换成任务刷新）
+const TASK_COMMANDS: { action: string; label: string; params?: Record<string, unknown> }[] = [
+  { action: "task_refresh", label: "刷新任务", params: {} },
 ];
 const PLAY_COMMANDS: { action: string; label: string }[] = [
   { action: "play", label: "播放" },
@@ -83,6 +87,9 @@ export function ScreenTab() {
       <Group title="媒体/轮播">
         {PLAY_COMMANDS.map((c) => <Button key={c.action} variant="outline" disabled={busy} onClick={() => send(c.action)}>{c.label}</Button>)}
       </Group>
+      <Group title="任务中心">
+        {TASK_COMMANDS.map((c) => <Button key={c.action} variant="outline" disabled={busy} onClick={() => send(c.action, c.params)}>{c.label}</Button>)}
+      </Group>
       <Group title="全局">
         {GLOBAL_COMMANDS.map((c) => <Button key={c.action} variant="outline" disabled={busy} onClick={() => send(c.action)}>{c.label}</Button>)}
       </Group>