Update openapi.md scalar documentation

[jmcudd]

cdn is not part of the official Scalar configuration, but it is part of the Scalar plugin and provides a means of overriding the scalar URI to the scalar bundle.

Summary by CodeRabbit

• Documentation
  • Added a “Self-hosted Scalar bundle” subsection to the OpenAPI plugin docs.
  • Shows how to configure a custom self-hosted CDN path for the Scalar bundle.
  • Demonstrates disabling default fonts for greater styling control.
  • Clarifies options for hosting assets locally and adjusting appearance.
  • Documentation-only; no functional changes to the product.

[coderabbitai]

Walkthrough

Adds a "Self-hosted Scalar bundle" subsection to the OpenAPI plugin docs showing scalar configuration with a self-hosted CDN path (cdn: "/public/scalar-standalone.min.js") and withDefaultFonts: false. The same example is inserted in two places; no code changes.

Changes

Cohort / File(s)	Summary
Docs: OpenAPI plugin configuration docs/plugins/openapi.md	Added "Self-hosted Scalar bundle" subsection(s) demonstrating scalar config with cdn: "/public/scalar-standalone.min.js" and withDefaultFonts: false. Example duplicated in two locations. No functional code changes.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

I thump a note on docs today,
A local CDN leads the way,
Fonts tucked in a quiet nest,
Scalar bundled for the rest.
Two echoes hum — the README's best. 🥕

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title Check	✅ Passed	The title clearly and concisely describes the main change of updating the scalar documentation in the openapi.md file, providing just enough context without extra noise.
Docstring Coverage	✅ Passed	No functions found in the changes. Docstring coverage check skipped.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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📜 Recent review details

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Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between af8c3d7 and 625a309.

📒 Files selected for processing (1)

• docs/plugins/openapi.md (1 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• docs/plugins/openapi.md

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[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

docs/plugins/openapi.md (1)

169-180: Clarify plugin-specific override for cdn

Add a note that cdn is an Elysia OpenAPI plugin option (not part of Scalar’s native config) and update inline comments for clarity.

Apply this diff:

### Self-hosted Scalar bundle

-Self-host the Scalar bundle and disable CDN Fonts.
+Self-host the Scalar bundle and disable CDN Fonts.
+
+Note: `cdn` is an Elysia OpenAPI plugin option (not part of Scalar’s own config); it overrides the URI to the Scalar bundle.

```typescript
-  openapi({ 
+  openapi({
     scalar: {
-      cdn: "/public/scalar-standalone.min.js", //Self-hosted
-      withDefaultFonts: false, //Disable CDN Fonts
+      cdn: "/public/scalar-standalone.min.js", // plugin override for Scalar bundle URI (self-hosted)
+      withDefaultFonts: false, // disable Scalar’s default font CDN
     },
   })

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<details>
<summary>📜 Review details</summary>

**Configuration used**: CodeRabbit UI

**Review profile**: CHILL

**Plan**: Pro

<details>
<summary>📥 Commits</summary>

Reviewing files that changed from the base of the PR and between b6a67d1e78e78d17e1a1d8194b0e7b72d90c4d84 and af8c3d7caaea8db34606915f609358fb1f7a3446.

</details>

<details>
<summary>📒 Files selected for processing (1)</summary>

* `docs/plugins/openapi.md` (1 hunks)

</details>

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