remove assertActivityMatchesUrls in favor of three-way same-authority checks

packages/backend/test/misc/mock-resolver.ts

@@ -24,6 +24,7 @@ import type {
 	UsersRepository,
 } from '@/models/_.js';
 import { ApLogService } from '@/core/ApLogService.js';
+import { ApUtilityService } from '@/core/activitypub/ApUtilityService.js';
 
 type MockResponse = {
 	type: string;
@@ -51,6 +52,7 @@ export class MockResolver extends Resolver {
 			{} as ApDbResolverService,
 			loggerService,
 			{} as ApLogService,
+			{} as ApUtilityService,
 		);
 	}