refactor: update StalwartService and tests for credential structure

Author: jzunigax2

src/modules/infrastructure/stalwart/stalwart.service.spec.ts

@@ -137,8 +137,9 @@ describe('StalwartService', () => {
         name: 'alice',
         domainId: 'dom1',
         description: 'Alice',
-        credentials: { '@type': 'Password', secret: 'pw' },
+        credentials: { '0': { '@type': 'Password', secret: 'pw' } },
         roles: { '@type': 'User' },
+        permissions: { '@type': 'Inherit' },
         quotas: { maxDiskQuota: 5_000_000 },
       });
     });

src/modules/infrastructure/stalwart/stalwart.service.ts

@@ -89,8 +89,9 @@ export class StalwartService implements OnModuleInit, OnModuleDestroy {
       '@type': TYPE_USER,
       name: params.name,
       domainId: params.domainId,
-      credentials: { '@type': TYPE_PASSWORD, secret: params.password },
+      credentials: { '0': { '@type': TYPE_PASSWORD, secret: params.password } },
       roles: { '@type': TYPE_USER },
+      permissions: { '@type': 'Inherit' },
     };
     if (params.description !== undefined) {
       create.description = params.description;