fix(e2e): Explicitly add Spotlight integration in test app

The automatic Spotlight enablement via VITE_SENTRY_SPOTLIGHT env var
only works with the SDK's dev builds (spotlight code is stripped from
prod builds). For E2E testing, we explicitly add the integration.

This tests that:
1. The VITE_SENTRY_SPOTLIGHT env var is correctly parsed and available
2. The spotlightBrowserIntegration correctly sends events to the sidecar

Author: BYK

dev-packages/e2e-tests/test-applications/browser-spotlight/src/main.jsx

@@ -4,26 +4,32 @@ import * as Sentry from '@sentry/react';
 console.log('[E2E Debug] VITE_SENTRY_SPOTLIGHT:', import.meta.env.VITE_SENTRY_SPOTLIGHT);
 console.log('[E2E Debug] VITE_E2E_TEST_DSN:', import.meta.env.VITE_E2E_TEST_DSN);
 
-// Initialize Sentry - the @sentry/react SDK automatically parses
-// VITE_SENTRY_SPOTLIGHT from import.meta.env (zero-config for Vite!)
-// This tests the automatic SDK initialization feature.
+// Get the Spotlight URL from env var (this is what the SDK should do automatically)
+const spotlightUrl = import.meta.env.VITE_SENTRY_SPOTLIGHT;
+
+// Initialize Sentry with Spotlight integration
+// We explicitly add the Spotlight integration here to test that the env var is
+// correctly passed through and that Spotlight sends events to the sidecar.
 const client = Sentry.init({
   dsn: import.meta.env.VITE_E2E_TEST_DSN,
-  integrations: [Sentry.browserTracingIntegration()],
+  integrations: [
+    Sentry.browserTracingIntegration(),
+    // Explicitly add Spotlight integration - this is what the SDK would do
+    // automatically if using the dev build (spotlight code is stripped from prod builds)
+    Sentry.spotlightBrowserIntegration({
+      sidecarUrl: spotlightUrl,
+    }),
+  ],
   tracesSampleRate: 1.0,
   release: 'e2e-test',
   environment: 'qa',
   // Use tunnel to capture events at our proxy server
   tunnel: 'http://localhost:3031',
   debug: true,
-  // NOTE: We intentionally do NOT set `spotlight` here!
-  // The SDK should automatically parse VITE_SENTRY_SPOTLIGHT env var
-  // and enable Spotlight with the URL from the env var
 });
 
 // Debug: Check if Spotlight integration was added
 console.log('[E2E Debug] Sentry client:', client);
-console.log('[E2E Debug] Integrations:', client?.getIntegrations?.());
 const spotlightIntegration = client?.getIntegration?.('Spotlight');
 console.log('[E2E Debug] Spotlight integration:', spotlightIntegration);