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

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

packages/navigation/src/__contracts__/header-repository.contract.ts

@@ -1,4 +1,4 @@
-import { it, expect, beforeEach } from "vitest";
+import { it, expect, beforeEach, describe } from "vitest";
 import { defineContractSuite } from "@repo/core-testing/contract";
 import type { IHeaderRepository } from "../application/repositories/header.repository.interface.js";
 import type { Header } from "../entities/models/header.js";
@@ -25,7 +25,7 @@ export const CONTRACT_HEADER_SEED: Header = {
 export const headerRepositoryContract =
   defineContractSuite<IHeaderRepository>(
     "IHeaderRepository",
-    ({ buildSubject }) => {
+    ({ buildSubject, getTracer }) => {
       let repo: IHeaderRepository;
 
       beforeEach(async () => {
@@ -71,5 +71,17 @@ export const headerRepositoryContract =
           header.logoId === undefined || typeof header.logoId === "string",
         ).toBe(true);
       });
+
+      describe("span emission (R50)", () => {
+        it("getHeader emits header.getHeader span with op=repository", async () => {
+          if (!getTracer) return;
+          const tracer = getTracer();
+          tracer.reset();
+          await repo.getHeader();
+          const span = tracer.findSpan("header.getHeader");
+          expect(span).toBeDefined();
+          expect(span!.op).toBe("repository");
+        });
+      });
     },
   );