feat(dashboard): add boss dashboard H5 and APIs

Implement the mobile dashboard frontend, admin overview APIs, report archive export, and local dev proxy so the boss dashboard can run against real backend data while preserving MSW demos.

Co-authored-by: Cursor <cursoragent@cursor.com>

dashboard-frontend/src/app/providers/AppProviders.tsx

@@ -0,0 +1,26 @@
+import { ConfigProvider } from 'antd-mobile'
+import zhCN from 'antd-mobile/es/locales/zh-CN'
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
+import type { ReactNode } from 'react'
+
+const queryClient = new QueryClient({
+  defaultOptions: {
+    queries: {
+      staleTime: 60 * 1000,
+      retry: 1,
+      refetchOnWindowFocus: false,
+    },
+  },
+})
+
+type AppProvidersProps = {
+  children: ReactNode
+}
+
+export function AppProviders({ children }: AppProvidersProps) {
+  return (
+    <ConfigProvider locale={zhCN}>
+      <QueryClientProvider client={queryClient}>{children}</QueryClientProvider>
+    </ConfigProvider>
+  )
+}