chore: move scroll restoration and focus reset out of client.js

[Nic-Polumeyv]

Scroll restoration and focus reset live in client.js but read none of its state. This moves them, unchanged, into their own module, the shape snapshots.js took in #16685.

[pkg-svelte-dev]

Install the latest version of @sveltejs/kit from fad9a52:

pnpm add https://pkg.svelte.dev/@sveltejs/kit/c/fad9a52484d020561a244623fb4e9000646e0eef

Open in pkg.svelte.dev: https://pkg.svelte.dev/repos/kit/pr/16980

[changeset-bot]

⚠️ No Changeset found

Latest commit: fad9a52

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[svelte-docs-bot]

Preview: https://svelte-dev-git-preview-kit-16980-svelte.vercel.app/

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

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📥 Commits

Reviewing files that changed from the base of the PR and between 01f7ffb and fad9a52.

📒 Files selected for processing (1)

• packages/kit/src/runtime/client/client.js

🔗 Linked repositories identified

CodeRabbit considers these linked repositories for cross-repo context during reviews:

• sveltejs/vite-plugin-svelte (manual)
• vitejs/vite (manual)
• sveltejs/svelte (manual)

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📝 Walkthrough

Walkthrough

Focus, hash lookup, and scroll management move from client.js into dedicated runtime modules. Client navigation imports the new helpers. Vitest coverage validates focus restoration, hash navigation, scroll restoration, and one-navigation scroll suppression.

Merge Risk: ⚪ Minimal · up to fad9a

Client focus and scroll behavior has been reorganized into dedicated runtime helpers while preserving navigation behavior, with coverage for the affected restoration and suppression paths. No current merge-blocking risk is identified.

🚥 Pre-merge checks | ✅ 2

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title uses the required chore: prefix and accurately describes moving scroll restoration and focus reset out of client.js.
Backward Compatibility Impact Disclosure	✅ Passed	No breaking public interface change is introduced. The PR changes only runtime client modules and tests. The package export map is unchanged, all existing named exports from client.js remain, and `u…

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