fix(admin,api): 上分超额提示而非静默截断，并返回中文业务错误

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

apps/admin/src/i18n/form-validation.ts

@@ -15,7 +15,18 @@ export function resolveFormError(e: unknown, t: (key: string) => string): string
   return t('msg.form_invalid');
 }
 
-/** 从 API 错误响应提取可读文案（Nest 全局过滤器返回 `error` 字段） */
+/** Nest 默认 4xx 响应里 error 常为 "Bad Request" 等泛化文案，真实原因在 message */
+const GENERIC_HTTP_ERRORS = new Set([
+  'Bad Request',
+  'Unauthorized',
+  'Forbidden',
+  'Not Found',
+  'Conflict',
+  'Unprocessable Entity',
+  'Internal Server Error',
+]);
+
+/** 从 API 错误响应提取可读文案（兼容 GlobalExceptionFilter 与 Nest 默认格式） */
 export function resolveApiError(
   err: unknown,
   t: (key: string) => string,
@@ -23,8 +34,13 @@ export function resolveApiError(
 ): string {
   const data = (err as { response?: { data?: { error?: string | string[]; message?: string | string[] } } })
     ?.response?.data;
-  const raw = data?.error ?? data?.message;
-  if (Array.isArray(raw)) return raw.join('；');
-  if (typeof raw === 'string' && raw.trim()) return raw;
+  const msgRaw = data?.message;
+  const errRaw = data?.error;
+  const message = Array.isArray(msgRaw) ? msgRaw.join('；') : msgRaw;
+  const error = Array.isArray(errRaw) ? errRaw.join('；') : errRaw;
+  if (typeof message === 'string' && message.trim()) {
+    if (!error || GENERIC_HTTP_ERRORS.has(error)) return message;
+  }
+  if (typeof error === 'string' && error.trim() && !GENERIC_HTTP_ERRORS.has(error)) return error;
   return t(fallbackKey);
 }