fix(dev-middleware): compatibility with native node handler

[danielroe]

Summary

Currently there are two issues I'm facing with dev-middleware:

1. it uses express-only handlers like req.path and res.send()
2. it does not respect a public path (I may be misunderstanding how this is meant to be used though - should this only be registered to handle paths beginning with the publicPath?

This PR uses node-compatible methods (req.url and res.end()) which will also work in express, expanding the compatibility of this library. It also normalises any URLs beginning with publicPath so they can be handled in this middleware.

(I am happy to remove the change to publicPath handling if this is intended.)

Related issue (if exists)

Types of changes

• [ ] Docs change / Dependency upgrade
• [x] Bug fix
• [ ] New feature / Improvement
• [ ] Refactoring
• [ ] Breaking change

Checklist

• [x] I have added changeset via pnpm run changeset.
• [ ] I have added tests to cover my changes.

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 9366be785bb3fe4570e2abe702f348236ad0c129

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 16 packages

Name	Type
@rspack/dev-middleware	Patch
@rspack/dev-server	Patch
@rspack/cli	Patch
benchmarkcase-rspack-react-refresh	Patch
@rspack/postcss-loader	Patch
@rspack/dev-client	Patch
@rspack/plugin-html	Patch
@rspack/plugin-minify	Patch
@rspack/plugin-node-polyfill	Patch
@rspack/core	Patch
@rspack/binding-darwin-arm64	Patch
@rspack/binding-darwin-x64	Patch
@rspack/binding-linux-x64-gnu	Patch
@rspack/binding-win32-x64-msvc	Patch
@rspack/binding	Patch
@rspack/fs	Patch

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