docs: redirect legacy otel python sdk cookbook

[ofeliacode]

What does this PR do?

Closes #2508

Adds a redirect for the legacy OpenTelemetry Python SDK cookbook URL:

/guides/cookbook/otel_integration_python_sdk

to the current SDK instrumentation docs:

/docs/observability/sdk/instrumentation

Test plan

• git diff --check
• npm exec --yes prettier -- --check lib/redirects.js
• node -c lib/redirects.js
• node -e "const { permanentRedirects } = require('./lib/redirects.js'); const target = permanentRedirects.find(([from]) => from === '/guides/cookbook/otel_integration_python_sdk'); if (!target) throw new Error('missing redirect'); if (target[1] !== '/docs/ observability/sdk/instrumentation') throw new Error('wrong target: ' + target[1]); console.log(target.join(' -> '));"

Greptile Summary

This PR adds a single permanent redirect entry in lib/redirects.js to forward traffic from the removed legacy OTel Python SDK cookbook page (/guides/cookbook/otel_integration_python_sdk) to the current SDK instrumentation docs (/docs/observability/sdk/instrumentation). The target page exists and is already referenced as a destination by multiple other redirect rules.

• The redirect entry follows the correct [source, destination] tuple format and the target MDX file (content/docs/observability/sdk/instrumentation.mdx) is confirmed to exist on disk.
• The entry is inserted slightly out of alphabetical order within mainDocsReorder202507 — placing a /guides/ path between two /docs/ paths — though this has no functional effect.

Confidence Score: 5/5

Safe to merge — adds a single redirect entry pointing to a confirmed live page with no redirect chaining.

The change is minimal and correct: the target page exists on disk, is already used as a destination by several other redirect rules, and the tuple format matches all surrounding entries. The only observation is a slight sort-order deviation within the array, which has no effect on how redirects are resolved at runtime.

No files require special attention.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A["User visits /guides/cookbook/otel_integration_python_sdk"] --> B["permanentRedirects lookup\n(mainDocsReorder202507 array)"]
    B --> C["301 Permanent Redirect"]
    C --> D["/docs/observability/sdk/instrumentation\n(content/docs/observability/sdk/instrumentation.mdx ✓)"]

Loading

%%{init: {'theme': 'base', 'themeVariables': {"darkMode": true, "background": "#0d1117", "primaryColor": "#21262d", "primaryTextColor": "#e6edf3", "primaryBorderColor": "#8b949e", "lineColor": "#8b949e", "textColor": "#e6edf3", "edgeLabelBackground": "#161b22", "actorBkg": "#21262d", "actorBorder": "#8b949e", "actorTextColor": "#e6edf3", "actorLineColor": "#8b949e", "signalColor": "#8b949e", "signalTextColor": "#e6edf3", "noteBkgColor": "#373320", "noteBorderColor": "#d4a72c", "noteTextColor": "#f0e6c0", "labelBoxBkgColor": "#21262d", "labelBoxBorderColor": "#8b949e", "labelTextColor": "#e6edf3", "loopTextColor": "#e6edf3", "activationBkgColor": "#30363d", "activationBorderColor": "#8b949e"}}}%%
flowchart TD
    A["User visits /guides/cookbook/otel_integration_python_sdk"] --> B["permanentRedirects lookup\n(mainDocsReorder202507 array)"]
    B --> C["301 Permanent Redirect"]
    C --> D["/docs/observability/sdk/instrumentation\n(content/docs/observability/sdk/instrumentation.mdx ✓)"]

Loading

Prompt To Fix All With AI

Fix the following 1 code review issue. Work through them one at a time, proposing concise fixes.

---

### Issue 1 of 1
lib/redirects.js:693-698
The new `/guides/cookbook/otel_integration_python_sdk` entry is placed between two `/docs/` paths, but since it starts with `/guides/`, it sorts after all `/docs/` entries alphabetically. This breaks the loose alphabetical ordering maintained throughout `mainDocsReorder202507`. Consider moving it after the last `/docs/tracing-features/...` entry (around line 807) alongside the other `/guides/cookbook/...` entries that already appear there (lines 839–847). This has no functional impact but keeps the array easier to scan.

```suggestion
  ["/docs/opentelemetry/get-started", "/integrations/native/opentelemetry"],
  ["/docs/playground", "/docs/prompt-management/features/playground"],
```

_{Reviews (1): Last reviewed commit: "docs: redirect legacy otel python sdk co..." | Re-trigger Greptile}

[claude]

Claude Code Review

This pull request is from a fork — automated review is disabled. A repository maintainer can comment @claude review to run a one-time review.

[vercel]

Someone is attempting to deploy a commit to the langfuse Team on Vercel.

A member of the Team first needs to authorize it.

[CLAassistant]

All committers have signed the CLA.