add elysia-sveltekit adapter integration guide

[pyoner]

• Add integration guide for using Elysia with SvelteKit hooks using the elysia-sveltekit adapter
• Add elysia-sveltekit to community plugins list

Summary by CodeRabbit

• Documentation
  • Added comprehensive SvelteKit integration guide covering the elysia-sveltekit adapter, including setup instructions and hook implementation examples.
  • Added Elysia SvelteKit to the official plugins list.

[coderabbitai]

Walkthrough

Documentation expansion for the SvelteKit integration framework. Added comprehensive guide for the elysia-sveltekit adapter including installation, initialization steps with context and hook setup, and instructions for wiring generated hooks into SvelteKit's server-side configuration. Also listed the new plugin in the official plugins directory.

Changes

Cohort / File(s)	Summary
SvelteKit Integration Documentation docs/integrations/sveltekit.md, docs/plugins/overview.md	Added new "Using SvelteKit Hooks" section documenting the elysia-sveltekit adapter with installation, initialization, context handling, and hooks.server.ts integration. Added plugin entry to the official plugins list.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• Add elysia-beta-headers plugin to overview #783: Both PRs add a new plugin entry to the Official plugins section in docs/plugins/overview.md, expanding the documented plugin ecosystem.

Poem

🐰 A hop through the docs, so clear and bright,
SvelteKit hooks now shining in the light,
From Elysia's burrow to your server's delight,
Integration guides make the path just right! ✨

🚥 Pre-merge checks | ✅ 3

✅ 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 accurately describes the main change: adding an integration guide for the elysia-sveltekit adapter, which is reflected in both documentation files.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

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

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@docs/integrations/sveltekit.md`:
- Around line 97-100: The MyContext interface currently declares platform as
required which conflicts with SvelteKit's RequestEvent typing (App.Platform |
undefined); update the interface declaration MyContext so platform is optional
(use platform?: App.Platform) and apply the same change to the other sample
context instance referenced (the block around the second occurrence), ensuring
all examples that mirror RequestEvent use platform as an optional property.

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ℹ️ Review info

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between e646a2d and d506325.

📒 Files selected for processing (2)

• docs/integrations/sveltekit.md
• docs/plugins/overview.md