test(auth): add unit tests for KYC presigned upload and submit handlers

Cover GenerateKycUploadUrlsHandler (10 tests) and SubmitKycHandler (10 tests):
presigned URL flow, legacy file upload, status validation, error handling.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

libs/mcp-servers/src/nestjs/mcp-registry.service.ts

@@ -61,7 +61,7 @@ export class McpRegistryService implements OnModuleInit {
     this.servers.set(
       'reports',
       createReportsServer({
-        aiServiceBaseUrl: this.options.aiServiceBaseUrl,
+        apiBaseUrl: this.options.apiBaseUrl ?? this.options.aiServiceBaseUrl,
       }),
     );
   }