feat: v2alpha user service idp endpoints (#5879)

* feat: v2alpha user service idp endpoints

* feat: v2alpha user service intent endpoints

* begin idp intents (callback)

* some cleanup

* runnable idp authentication

* cleanup

* proto cleanup

* retrieve idp info

* improve success and failure handling

* some unit tests

* grpc unit tests

* add permission check AddUserIDPLink

* feat: v2alpha intent writemodel refactoring

* feat: v2alpha intent writemodel refactoring

* feat: v2alpha intent writemodel refactoring

* provider from write model

* fix idp type model and add integration tests

* proto cleanup

* fix integration test

* add missing import

* add more integration tests

* auth url test

* feat: v2alpha intent writemodel refactoring

* remove unused functions

* check token on RetrieveIdentityProviderInformation

* feat: v2alpha intent writemodel refactoring

* fix TestServer_RetrieveIdentityProviderInformation

* fix test

* i18n and linting

* feat: v2alpha intent review changes

---------

Co-authored-by: Livio Spring <livio.a@gmail.com>
Co-authored-by: Tim Möhlmann <tim+github@zitadel.com>

internal/static/i18n/es.yaml

@@ -476,6 +476,15 @@ Errors:
     Terminated: Sesión ya terminada
     Token:
       Invalid: El identificador de sesión no es válido
+  Intent:
+    IDPMissing: Falta IDP en la solicitud
+    SuccessURLMissing: Falta la URL de éxito en la solicitud
+    FailureURLMissing: Falta la URL de error en la solicitud
+    StateMissing: Falta un parámetro de estado en la solicitud
+    NotStarted: La intención no se ha iniciado o ya ha finalizado
+    NotSucceeded: Intento fallido
+    TokenCreationFailed: Fallo en la creación del token
+    InvalidToken: El token de la intención no es válido
 
 AggregateTypes:
   action: Acción