feat: enhance operations dashboard and reporting controls

src/api/core/httpClient.test.ts

@@ -140,6 +140,23 @@ describe('request tenant and error boundaries', () => {
     await expect(requestBlob('/client/file-fail')).rejects.toThrow('文件不存在');
   });
 
+  it('marks string-body blob requests as JSON so download endpoints receive their payload', async () => {
+    let receivedContentType = '';
+    let receivedBody: unknown;
+    server.use(
+      http.post('http://localhost/api/admin/report-export', async ({ request: incoming }) => {
+        receivedContentType = incoming.headers.get('content-type') ?? '';
+        receivedBody = await incoming.json();
+        return new HttpResponse('xlsx-data', { status: 200 });
+      }),
+    );
+    await expect(
+      (await requestBlob('/admin/report-export', { method: 'POST', body: JSON.stringify({ reportType: 'signature' }) })).text(),
+    ).resolves.toBe('xlsx-data');
+    expect(receivedContentType).toContain('application/json');
+    expect(receivedBody).toEqual({ reportType: 'signature' });
+  });
+
   it('retries blob downloads after recent authentication and supports admin tenant selection', async () => {
     writeSession({
       portal: 'admin',

src/api/core/httpClient.ts

@@ -114,6 +114,9 @@ export async function request<T>(path: string, options: RequestOptions = {}): Pr
 
 export async function requestBlob(path: string, options: RequestOptions = {}): Promise<Blob> {
   const headers = new Headers(options.headers);
+  if (typeof options.body === 'string' && !headers.has('Content-Type')) {
+    headers.set('Content-Type', 'application/json');
+  }
   const portal = requestPortal(path);
   const session = portal ? readSession(portal) : null;
   if (session && hasRecentUserActivity()) headers.set('x-session-activity', 'user');