chore: test react-router basename

[hi-ogawa]

• depends on feat(remix-dev/vite, remix-react, remix-server-runtime): support custom basename remix-run/remix#8145

todo

• dev
• build + start
• hmr
• <Link />
  • prefetch
  • relative
  • outside of basename (this is not client side navigation, so it would be simply <a>)
• useNavigate
• resource route
• no FOUC
• verify all requests are under /mybase/
• custom server
• loader redirect
  • document request (server side 302)
  • data request (client side "X-Remix-Redirect")
  • outside of basename (use redirectDocument)
• action
• more remix/react-router api (e.g. useLocation, useMatches, useFetchers, ...)
• basename != publicPath case
  • dev: publicPath (= vite base) must be a prefix of basename
  • build
• pre-vite remix