fix(css): detect css modules from full id for vue virtual sfc styles

[sxzz]

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

Description

tsdown's @tsdown/css plugin was matching CSS_MODULE_RE against the cleaned path (everything before ?), so Vue SFC virtual modules like Component.vue?vue&type=style&index=0&lang.module.css were never treated as CSS modules — the module map stayed empty and rolldown errored with "default" is not exported. Matching against the full id (including query) aligns with Vite (packages/vite/src/node/plugins/css.ts:1513) and fixes the build.

Linked Issues

fixes #916

Additional context

Added a regression test under tests/issues.test.ts using unplugin-vue/rolldown with a <style module> block; the snapshot at tests/__snapshots__/issues/916.snap.md confirms { "btn": "mod_btn" } is exported and .mod_btn appears in the emitted CSS.

[netlify]

✅ Deploy Preview for tsdown-main ready!

Name	Link
🔨 Latest commit	9e37d23
🔍 Latest deploy log	https://app.netlify.com/projects/tsdown-main/deploys/69e082a86e738f0008801a44
😎 Deploy Preview	https://deploy-preview-917--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@917 -D

npm i https://pkg.pr.new/tsdown@917 -D

yarn add https://pkg.pr.new/tsdown@917.tgz -D

create-tsdown

pnpm add https://pkg.pr.new/create-tsdown@917 -D

npm i https://pkg.pr.new/create-tsdown@917 -D

yarn add https://pkg.pr.new/create-tsdown@917.tgz -D

@tsdown/css

pnpm add https://pkg.pr.new/@tsdown/css@917 -D

npm i https://pkg.pr.new/@tsdown/css@917 -D

yarn add https://pkg.pr.new/@tsdown/css@917.tgz -D

@tsdown/exe

pnpm add https://pkg.pr.new/@tsdown/exe@917 -D

npm i https://pkg.pr.new/@tsdown/exe@917 -D

yarn add https://pkg.pr.new/@tsdown/exe@917.tgz -D

tsdown-migrate

pnpm add https://pkg.pr.new/tsdown-migrate@917 -D

npm i https://pkg.pr.new/tsdown-migrate@917 -D

yarn add https://pkg.pr.new/tsdown-migrate@917.tgz -D

commit: 9e37d23