Fix: UnauthorizedResult type error to generic and add undefined

Author: ahmed-n-abdeltwab

apps/meteor/app/api/server/ApiClass.ts

@@ -363,7 +363,7 @@ export class APIClass<
 		};
 	}
 
-	public unauthorized(msg?: string): UnauthorizedResult {
+	public unauthorized<T>(msg?: T): UnauthorizedResult<T> {
 		return {
 			statusCode: 401,
 			body: {

apps/meteor/app/api/server/definition.ts

@@ -39,11 +39,11 @@ export type RedirectResult<T, TStatusCode extends RedirectStatusCodes = 300> = {
 	body: T;
 };
 
-export type UnauthorizedResult = {
+export type UnauthorizedResult<T> = {
 	statusCode: 401;
 	body: {
 		success: false;
-		error: string;
+		error?: T | string; // 'unauthorized' is the default error message
 	};
 };