task-3: callJava() 统一响应解包（JavaApiResponse/Legacy 兼容、success=false 抛错）；开启 allowImportingTsExtensions 支持 node --test

frontend-vue/src/shared/api/call.ts

@@ -0,0 +1,35 @@
+import { http, type RequestOptions } from './http.ts'
+
+export interface JavaApiResponse<T> {
+  success: boolean
+  message: string
+  data: T | null
+}
+
+export interface LegacyApiSuccess<T> {
+  success: true
+  msg?: string
+  data?: T
+}
+
+export async function callJava<T = unknown, D = unknown>(
+  config: RequestOptions<D>,
+): Promise<T> {
+  const body = await http.request<unknown, unknown, D>(config)
+  const data = (body as { data?: unknown }).data ?? body
+
+  if (
+    data &&
+    typeof data === 'object' &&
+    'success' in data &&
+    typeof (data as { success: unknown }).success === 'boolean'
+  ) {
+    const wrapped = data as { success: boolean; message?: string; msg?: string; error?: string; data?: T }
+    if (!wrapped.success) {
+      throw new Error(wrapped.message || wrapped.msg || wrapped.error || '请求失败')
+    }
+    return wrapped.data as T
+  }
+
+  return data as T
+}