feat(attw): improve ignoreRules type to autocomplete known values

[mrlubos]

• This PR contains AI-generated code, but I have carefully reviewed it myself. Otherwise, my PR may be closed.

Description

Linked Issues

Closes #891

Additional context

I left the type permissive so it allows any string as it did before, this merely improves the autocompletion. Typos will still pass as valid options, let me know if I should make the type strict by removing the string & {} part.

[netlify]

✅ Deploy Preview for tsdown-main ready!

Name	Link
🔨 Latest commit	91a9e6e
🔍 Latest deploy log	https://app.netlify.com/projects/tsdown-main/deploys/69d2fe877464150007858576
😎 Deploy Preview	https://deploy-preview-892--tsdown-main.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[pkg-pr-new]

Open in StackBlitz

tsdown

pnpm add https://pkg.pr.new/tsdown@892 -D

npm i https://pkg.pr.new/tsdown@892 -D

yarn add https://pkg.pr.new/tsdown@892.tgz -D

create-tsdown

pnpm add https://pkg.pr.new/create-tsdown@892 -D

npm i https://pkg.pr.new/create-tsdown@892 -D

yarn add https://pkg.pr.new/create-tsdown@892.tgz -D

@tsdown/css

pnpm add https://pkg.pr.new/@tsdown/css@892 -D

npm i https://pkg.pr.new/@tsdown/css@892 -D

yarn add https://pkg.pr.new/@tsdown/css@892.tgz -D

@tsdown/exe

pnpm add https://pkg.pr.new/@tsdown/exe@892 -D

npm i https://pkg.pr.new/@tsdown/exe@892 -D

yarn add https://pkg.pr.new/@tsdown/exe@892.tgz -D

tsdown-migrate

pnpm add https://pkg.pr.new/tsdown-migrate@892 -D

npm i https://pkg.pr.new/tsdown-migrate@892 -D

yarn add https://pkg.pr.new/tsdown-migrate@892.tgz -D

commit: 91a9e6e