优化

src/modules/auth/views/AuthViews.test.mjs

@@ -104,6 +104,12 @@ test('treats only body code 200 as success', () => {
   assert.doesNotMatch(httpSource, /if \(envelope\.code !== '0'\)/)
 })
 
+test('shows the backend credential error on login', () => {
+  assert.match(httpSource, /new ApiError\(apiErrorMessage\(envelope\.message, fieldErrors\), envelope\.code/)
+  assert.match(loginSource, /ElMessage\.error\(error instanceof Error \? error\.message : '登录失败，请检查账号后重试'\)/)
+  assert.doesNotMatch(loginSource, /登录状态已失效，请重新登录/)
+})
+
 test('keeps a valid local session during temporary context and refresh outages', () => {
   assert.match(authStoreSource, /function isExpiredSessionError/)
   assert.match(authStoreSource, /if \(isExpiredSessionError\(error\)\)/)