docs(js): Update react router server instrumentation

docs/platforms/javascript/guides/cloudflare/frameworks/hydrogen-react-router.mdx

@@ -467,7 +467,6 @@ Our next recommended steps for you are:
 - Explore [practical guides](/guides) on what to monitor, log, track, and investigate after setup
 - Learn how to <PlatformLink to="/usage">manually capture errors</PlatformLink>
 - Continue to <PlatformLink to="/configuration">customize your configuration</PlatformLink>
-- Make use of [React Router-specific features](/platforms/javascript/guides/react-router/features/)
 - Get familiar with [Sentry's product features](/product/) like tracing, insights, and alerts
 
 <Expandable permalink={false} title="Are you having problems setting up the SDK?">

docs/platforms/javascript/guides/react-router/manual-setup.mdx

@@ -196,49 +196,16 @@ startTransition(() => {
 
 ### Configure Server-Side Sentry
 
-<Expandable level="warning" title="Limited Node support for auto-instrumentation" permalink>
+<Expandable level="warning" title="Limited Node support for OpenTelemetry auto-instrumentation" permalink>
 
-Automatic server-side instrumentation is currently only supported on:
+Sentry's OpenTelemetry-based auto-instrumentation (loaded through `instrument.server.mjs`) is currently only supported on:
 
 - **Node 20:** Version \<20.19
 - **Node 22:** Version \<22.12
 
-If you're on a different version, you have two options:
+This restriction **doesn't** affect tracing for loaders, actions, middleware, and request handlers. Those are instrumented through React Router's [instrumentation API](https://reactrouter.com/how-to/instrumentation) (the `instrumentations` export shown below, React Router 7.15+), which works on all Node versions.
 
-1. **Recommended**: Use the <PlatformLink to="/features/instrumentation-api/">Instrumentation API</PlatformLink> (React Router 7.9.5+) for automatic tracing without Node version restrictions
-2. **Alternative**: Use our manual server wrappers (shown below)
-
-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
-  }
-);
-```
+On unsupported Node versions, you'll only lose auto-instrumentation for lower-level operations such as outgoing HTTP requests and database queries.
 
 </Expandable>
 
@@ -296,7 +263,9 @@ Sentry.init({
 <SplitSection>
 <SplitSectionText>
 
-Next, replace the default `handleRequest` and `handleError` functions in your `entry.server.tsx` file with Sentry's wrapped versions:
+Next, replace the default `handleRequest` and `handleError` functions in your `entry.server.tsx` file with Sentry's wrapped versions, and export `instrumentations` to enable automatic tracing.
+
+Exporting `instrumentations` uses React Router's [instrumentation API](https://reactrouter.com/how-to/instrumentation) (React Router 7.15+) to automatically create spans for all loaders, actions, middleware, and request handlers — no need to wrap them individually.
 
 </SplitSectionText>
 <SplitSectionCode>
@@ -320,6 +289,10 @@ Next, replace the default `handleRequest` and `handleError` functions in your `e
 +  logErrors: false
 +});
 
++// Automatically instruments all server loaders, actions, middleware,
++// and request handlers. Requires React Router 7.15+.
++export const instrumentations = [Sentry.createSentryServerInstrumentation()];
+
 // ... rest of your server entry
 ```
 

redirects.js

@@ -963,6 +963,10 @@ const userDocsRedirects = [
     source: '/platforms/javascript/guides/aws-lambda/cjs-npm__v9.x/',
     destination: '/platforms/javascript/guides/aws-lambda/install/cjs-npm__v9.x/',
   },
+  {
+    source: '/platforms/javascript/guides/react-router/features/instrumentation-api/',
+    destination: '/platforms/javascript/guides/react-router/manual-setup/',
+  },
   {
     source: '/platforms/javascript/guides/nextjs/sourcemaps/uploading/',
     destination: '/platforms/javascript/guides/nextjs/sourcemaps/',
@@ -1868,7 +1872,8 @@ const userDocsRedirects = [
   },
   {
     source: '/product/insights/mobile-vitals/screen-loads/',
-    destination: '/product/dashboards/sentry-dashboards/mobile/mobile-vitals/screen-loads/',
+    destination:
+      '/product/dashboards/sentry-dashboards/mobile/mobile-vitals/screen-loads/',
   },
   {
     source: '/product/insights/mobile-vitals/:path*',