chore(changelog): Add entry for tanstack start wrapFetchWithSentry

Author: nicohrubec

CHANGELOG.md

@@ -4,6 +4,24 @@
 
 - "You miss 100 percent of the chances you don't take. — Wayne Gretzky" — Michael Scott
 
+- **feat(tanstackstart-react): Trace server functions ([#18500](https://github.com/getsentry/sentry-javascript/pull/18500))**
+
+To enable tracing for server-side requests, you can now explicitly define a [server entry point](https://tanstack.com/start/latest/docs/framework/react/guide/server-entry-point) in your application and wrap your request handler with `wrapFetchWithSentry`.
+
+```typescript
+// src/server.ts
+import { wrapFetchWithSentry } from "@sentry/tanstackstart-react";
+import handler, { createServerEntry } from "@tanstack/react-start/server-entry";
+
+export default createServerEntry(
+  wrapFetchWithSentry({
+    fetch(request: Request) {
+      return handler.fetch(request);
+    },
+  })
+);
+```
+
 - **feat(vue): Add TanStack Router integration ([#18359](https://github.com/getsentry/sentry-javascript/pull/18359))**
 
 The `@sentry/vue` package now includes support for TanStack Router. Use `tanstackRouterBrowserTracingIntegration` to automatically instrument pageload and navigation transactions with parameterized routes: