feat: Authors feature backend (and upgraded deprecated mods)

test/user_roles_test.go

@@ -60,7 +60,7 @@ func newUserRolesFixture(t *testing.T, maxAttempts int) *userRolesFixture {
 		f.token,
 		true,
 	)
-	meHandler := auth.NewMeHandler(getUser)
+	meHandler := auth.NewMeHandler(getUser, useCases.NewGetMyAuthorUseCase(plainAuthors()))
 	inviteHandler := userhandler.NewInviteHandler(
 		useCases.NewCreateInviteUseCase(f.users, f.invites, hasher, f.mail, invitePublicURL, discardRecorder),
 		nil,