docs(js): Remove the lightweight mode page, document openTelemetryIntegration

[JPeer264]

DESCRIBE YOUR PR

closes SDK-1352

v11 has no lightweight mode. @sentry/node-core was merged back into @sentry/node, so @sentry/node-core/light no longer exists and the whole page described a setup that cannot be followed.

The OTLP half of that page survives in a different form. The integration moved to the main export of every server SDK and was renamed to openTelemetryIntegration(), because it sends nothing over OTLP. Give it its own integration page covering what it does, the exporter wiring through getOtlpTracesEndpoint(), and the enableOpenTelemetrySetup caveat for @sentry/nextjs and @sentry/sveltekit.

The removed setupOtlpTracesExporter and collectorUrl options are not carried over: you configure the exporter yourself now.

• Drop the lightweight entry from the installation methods page.
• Point the "simpler way to bridge your existing setup" line on the custom OpenTelemetry setup page at the new integration.
• Point the Node.js card on the OTLP concepts page there too.
• Redirect /install/lightweight/ to the new page for the seven guides that served it.

IS YOUR CHANGE URGENT?

Help us prioritize incoming PRs by letting us know when the change needs to go live.
Select exactly one option. For deadlines, replace YYYY-MM-DD with the due date. You can update this information later by editing the PR description.

• Urgent deadline (GA date, etc.): YYYY-MM-DD
• Other deadline: YYYY-MM-DD
• No deadline: Not urgent, can wait up to 1 week+

SLA

• Teamwork makes the dream work, so please add a reviewer to your PRs.
• Please give the docs team up to 1 week to review your PR unless you've supplied a deadline.

Thanks in advance for your help!

PRE-MERGE CHECKLIST

Make sure you've checked the following before merging your changes:

• Checked Vercel preview for correctness, including links
• PR was reviewed and approved by any necessary SMEs (subject matter experts)
• PR was reviewed and approved by a member of the Sentry docs team

LEGAL BOILERPLATE

Look, I get it. The entity doing business as "Sentry" was incorporated in the State of Delaware in 2015 as Functional Software, Inc. and is gonna need some rights from me in order to utilize my contributions in this here PR. So here's the deal: I retain all rights, title and interest in and to my contributions, and by keeping this boilerplate intact I confirm that Sentry can use, modify, copy, and redistribute my contributions, under Sentry's choice of terms.

EXTRA RESOURCES

• Sentry Docs contributor guide

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated
develop-docs	Ready	Preview	Sep 19, 2026 3:41pm UTC
sentry-docs	Ready	Preview	Sep 19, 2026 3:41pm UTC

[linear-code]

SDK-1352

[github-actions]

⚠️ Redirect Chain Issues Detected

This PR introduces or contains redirect chains that degrade SEO and add latency.

Content Links Pointing to Redirects (1 found)

These links point to URLs that redirect. Update them to point directly to the final destination:

File	Line	Current Link	Should Be
includes/docs-changelog.mdx	121	/platforms/javascript/guides/node/install/lightweight/	/platforms/javascript/guides/node/configuration/integrations/opentelemetry/

---

Each redirect hop loses ~15% of SEO link equity and adds latency for users.