后端与全仓代码质量清理（golangci 扩展集 · 测试质量 · 并发安全 · 文档同步）

代码质量全量清理，零行为变化：golangci 扩展集 13 类 linter（gosec/modernize/perfsprint/canonicalheader/usestdlibvars/wastedassign/intrange/errorlint/forcetypeassert/recvcheck/exhaustive/unparam）全量修复，测试代码质量（testifylint/thelper/usetesting）25→0，frpc 进程生命周期真 bug（进程组击杀）、全仓 go test -race 6 类数据竞争（含 1 个生产竞争）、SPDX license 头补齐 131 文件、前端测试套件 next-intl 迁移后 44 失败→全绿、过期 swagger 文档重新生成、pnpm-workspace 构建审批。

Experiments: #2-#17, #18, #20, #21, #23
Metric: total_issues 108 → 8 (-92.6%)

frontend/tests/openflare/pages-source-auto-update.test.tsx

@@ -20,6 +20,8 @@ import {
   type PagesGitHubReleaseSource,
   PagesService,
 } from '@/lib/services/openflare';
+import { NextIntlClientProvider } from 'next-intl';
+import zhCN from '@/messages/zh-CN.json';
 
 vi.mock('@/lib/services/openflare', async (importOriginal) => {
   const actual =
@@ -48,16 +50,18 @@ function renderWithQuery(ui: React.ReactNode) {
     },
   });
   const rendered = render(
-    <QueryClientProvider client={queryClient}>{ui}</QueryClientProvider>,
+    <NextIntlClientProvider locale='zh-CN' messages={zhCN} timeZone='Asia/Shanghai'>
+      <QueryClientProvider client={queryClient}>{ui}</QueryClientProvider>
+    </NextIntlClientProvider>,
   );
   return {
     ...rendered,
     queryClient,
     rerenderWithQuery: (nextUI: React.ReactNode) =>
       rendered.rerender(
-        <QueryClientProvider client={queryClient}>
-          {nextUI}
-        </QueryClientProvider>,
+        <NextIntlClientProvider locale='zh-CN' messages={zhCN} timeZone='Asia/Shanghai'>
+          <QueryClientProvider client={queryClient}>{nextUI}</QueryClientProvider>
+        </NextIntlClientProvider>,
       ),
   };
 }

frontend/tests/openflare/pages-source-ui.test.tsx

@@ -17,6 +17,8 @@ import {
   type PagesRemoteURLSource,
   PagesService,
 } from '@/lib/services/openflare';
+import { NextIntlClientProvider } from 'next-intl';
+import zhCN from '@/messages/zh-CN.json';
 
 vi.mock('@/lib/services/openflare', async (importOriginal) => {
   const actual =
@@ -56,7 +58,9 @@ function renderWithQuery(ui: React.ReactNode) {
     },
   });
   return render(
-    <QueryClientProvider client={queryClient}>{ui}</QueryClientProvider>,
+    <NextIntlClientProvider locale='zh-CN' messages={zhCN} timeZone='Asia/Shanghai'>
+      <QueryClientProvider client={queryClient}>{ui}</QueryClientProvider>
+    </NextIntlClientProvider>,
   );
 }
 
@@ -390,7 +394,7 @@ describe('Pages source UI', () => {
     expect(screen.getByText('下次检查')).toBeVisible();
     expect(screen.getByText('自动更新')).toBeVisible();
     expect(screen.getByText('已关闭')).toBeVisible();
-    expect(screen.getByText('检查间隔')).toBeVisible();
+    expect(screen.getByText('检查间隔（分钟）')).toBeVisible();
     expect(screen.getByText('1440 分钟')).toBeVisible();
   });