feat(FN-415): add locator-stability + hit-target verification tests

Commits merged:
- feat(FN-415): add locator-stability + hit-target verification tests

Files changed:
apps/api/src/telemetry/__tests__/telemetry.spec.ts |  8 +++
 .../src/routes/__tests__/dashboard-search.test.tsx | 67 ++++++++++++++++++++++
 2 files changed, 75 insertions(+)

Fusion-Task-Id: FN-415

Fusion-Task-Lineage: 01e6f3d2-cd2e-4023-b538-ea54926b4f87

apps/api/src/telemetry/__tests__/telemetry.spec.ts

@@ -1,5 +1,13 @@
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 
+// Mock the heavy @opentelemetry/sdk-node meta-package to avoid slow/cascading imports
+// that can cause the test to time out under system load.
+vi.mock("@opentelemetry/sdk-node", () => ({
+  NodeSDK: class MockNodeSDK {
+    start() {}
+  },
+}));
+
 describe("Telemetry module", () => {
   const originalEnv = process.env;