test(performance): derive navigation target from route registry

scripts/test-performance.mjs

@@ -6,6 +6,7 @@ import process from "node:process";
 import { chromium } from "@playwright/test";
 
 import { evaluateLabBudget } from "../src/application/policies/performance-budgets.js";
+import { ROUTE_REGISTRY } from "../src/contracts/routes.js";
 
 const server = spawn(
   "corepack",
@@ -66,8 +67,13 @@ try {
       }).observe({ type: "layout-shift", buffered: true });
     });
     await page.goto(baseUrl, { waitUntil: "networkidle" });
+    const targetLabel =
+      ROUTE_REGISTRY.SAMPLE_RESOURCE_LIST.navigationLabel;
+    if (!targetLabel) {
+      throw new Error("Performance route must be present in navigation.");
+    }
     const interactionStarted = performance.now();
-    await page.getByRole("link", { name: "샘플 리소스" }).click();
+    await page.getByRole("link", { name: targetLabel }).click();
     await page.getByRole("heading", { name: "세션이 필요합니다." }).waitFor();
     const namedInteractionMs = performance.now() - interactionStarted;
     const paint = await page.evaluate(