backstage/.changeset/deprecate-mock-api-classes.md

@backstage/frontend-test-utils

@backstage/frontend-test-utils
patch

Deprecated standalone mock API exports in favor of the mockApis namespace. This includes the mock classes (MockAlertApi, MockAnalyticsApi, MockConfigApi, MockErrorApi, MockFetchApi, MockFeatureFlagsApi, MockPermissionApi, MockStorageApi, MockTranslationApi), their option types (MockErrorApiOptions, MockFeatureFlagsApiOptions), and the ErrorWithContext type. MockFetchApiOptions is kept as a non-deprecated export. Use the mockApis namespace instead, for example mockApis.alert() or mockApis.alert.mock().