Refactor exam information workflow

src/client/api.mjs

@@ -0,0 +1,13 @@
+export async function api(path, options = {}) {
+  const binaryBody = options.body instanceof ArrayBuffer || options.body instanceof Blob || options.body instanceof FormData;
+  const response = await fetch(path, {
+    credentials: 'same-origin',
+    headers: { ...(options.body && !binaryBody ? { 'Content-Type': 'application/json' } : {}), ...options.headers },
+    ...options,
+    body: options.body && typeof options.body !== 'string' && !binaryBody ? JSON.stringify(options.body) : options.body
+  });
+  const type = response.headers.get('content-type') || '';
+  const data = type.includes('application/json') ? await response.json() : await response.text();
+  if (!response.ok) throw new Error(data?.message || '操作未完成，请稍后重试');
+  return data;
+}