* fix: enable JSX in plain .js files (Next.js compat)
Add vinext:jsx-in-js transform plugin to handle JSX in plain .js files.
Next.js allows JSX in .js files (Babel/SWC handle it transparently),
but Vite 8's built-in vite:oxc plugin excludes .js files by default
(exclude: /\.js$/) AND infers lang: "js" from the extension (which
disables JSX parsing). Neither can be fixed via config alone.
The plugin runs with enforce: "pre" before vite:oxc, transforming .js
files with OXC using lang: "jsx" so JSX is compiled before vite:oxc
sees the code.
Tested: 972 tests pass (jsx-in-js + shims + routing), zero regressions.
* fix: suppress rules-of-hooks lint for Playwright fixture use()
The oxlint-disable-next-line only covered the function signature line,
not the use() call deeper in the function body. Use block-scoped
disable/enable to suppress the entire fixture definition.
James Anderson