feat: public API, SEO and existing surfaces

test/author_support_test.go

@@ -283,6 +283,9 @@ func (m *mockAuthorRepo) AvatarUsage() (map[uint32]int, error) {
 }
 
 func (m *mockAuthorRepo) FindByAvatar(imageID uint32) ([]author.Author, error) {
+	if err := m.fail.trigger("FindByAvatar"); err != nil {
+		return nil, err
+	}
 	found := []author.Author{}
 	for _, id := range m.sortedIDsAscending() {
 		if a := m.authors[id]; a.AvatarID != nil && *a.AvatarID == imageID {