test(features): R50 — repo contract suites assert span shape per method

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

packages/navigation/src/infrastructure/repositories/header.repository.mock.test.ts

@@ -1,7 +1,12 @@
 import { describe } from "vitest";
+import { RecordingTracer } from "@repo/core-testing/instrumentation";
 import { MockHeaderRepository } from "@/infrastructure/repositories/header.repository.mock";
 import { headerRepositoryContract, CONTRACT_HEADER_SEED } from "@/__contracts__/header-repository.contract";
 
 describe("MockHeaderRepository", () => {
-  headerRepositoryContract.run(() => new MockHeaderRepository(CONTRACT_HEADER_SEED));
+  const tracer = new RecordingTracer();
+  headerRepositoryContract.run(
+    () => new MockHeaderRepository(CONTRACT_HEADER_SEED, tracer),
+    { tracer: () => tracer },
+  );
 });