chore: improve minimizeDiff

[manuel3108]

Description

This is a heavily AI based re-write of minimizeDiff. The previous implementation had a couple of major problems when run against the following test projects:

• pkg.svelte.dev
• svelte.dev
• immich

For the two svelte projects the produced diff is close to perfect IMHO and only contains very understandable changes. Same applies for typescript files inside immich. For svelte files in immich, we will need to wait for sveltejs/svelte#18474, but this can happen at a later point.

Added a couple of regression tests on the go

Checklist

• Update snapshots (if applicable)
• Add a changeset (if applicable)
• Allow maintainers to edit this PR
• I care about what I'm doing, no matter the tool I use (Notepad, Sublime, VSCode, AI...)

[pkg-svelte-dev]

Install the latest version of sv from 997cba2:

pnpm add https://pkg.svelte.dev/sv/c/997cba282b6e86278f002322e279fa99d5916126

Open in pkg.svelte.dev: https://pkg.svelte.dev/repos/cli/pr/1163

[changeset-bot]

⚠️ No Changeset found

Latest commit: 997cba2

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

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[svelte-docs-bot]

Preview: https://svelte-dev-git-preview-cli-1163-svelte.vercel.app/