add new model in graphql for general mandate

libs/api/domains/auth/src/lib/models/delegation.model.ts

@@ -25,14 +25,15 @@ const exhaustiveCheck = (param: never) => {
   resolveType(delegation: Delegation) {
     switch (delegation.type) {
       case AuthDelegationType.LegalGuardian:
-      case AuthDelegationType.GeneralMandate:
         return LegalGuardianDelegation
       case AuthDelegationType.ProcurationHolder:
         return ProcuringHolderDelegation
       case AuthDelegationType.PersonalRepresentative:
         return PersonalRepresentativeDelegation
       case AuthDelegationType.Custom:
         return CustomDelegation
+      case AuthDelegationType.GeneralMandate:
+        return GeneralMandate
       case AuthDelegationType.LegalRepresentative:
         return LegalRepresentativeDelegation
       default:
@@ -72,6 +73,14 @@ export class ProcuringHolderDelegation extends Delegation {}
 })
 export class PersonalRepresentativeDelegation extends Delegation {}
 
+@ObjectType('AuthGeneralMandate', {
+  implements: Delegation,
+})
+export class GeneralMandate extends Delegation {
+  @Field(() => Date, { nullable: true })
+  validTo?: Date
+}
+
 @ObjectType('AuthCustomDelegation', {
   implements: Delegation,
 })