docs(js): Add alert on auto-instrumentation for react-router framework (#13929)

Author: chargome

docs/platforms/javascript/guides/react-router/index.mdx

@@ -172,6 +172,44 @@ export function ErrorBoundary({ error }: Route.ErrorBoundaryProps) {
 
 ### Server-Side Setup
 
+<Expandable level="warning" title="Limited Node support for auto instrumentation" permalink>
+  Automatic server-side instrumentation is currently only supported on:
+    - **Node 20:** Version \<20.19
+    - **Node 22:** Version \<22.12
+  
+  
+  If you are on a different version please make use of our manual server wrappers.
+  
+  For server loaders use `wrapServerLoader`:
+```ts
+import * as Sentry from '@sentry/react-router';
+
+export const loader = Sentry.wrapServerLoader(
+  {
+    name: 'Load Some Data',
+    description: 'Loads some data from the db',
+  },
+  async ({ params }) => {
+    // ... your loader logic
+  }
+);
+```
+ For server actions use `wrapServerAction`:
+```ts
+import * as Sentry from '@sentry/react-router';
+
+export const action = Sentry.wrapServerAction(
+  {
+    name: 'Submit Form Data',
+    description: 'Processes form submission data',
+  },
+  async ({ request }) => {
+    // ... your action logic
+  }
+);
+```
+</Expandable>
+
 Create an `instrument.server.mjs` file in the root of your app:
 
 ```js {filename: instrument.server.mjs}