refactor: /proxyをFileServerServiceに統合し、/proxyのurlで/filesが指定されていた場合は直接ファイルを解決するようにする (#9709)

* wip?

* clean up

* Implement? HttpFetchService

* ✌️

* remove node-fetch

* fix

* refactor

* fix

* gateway timeout

* UndiciFetcherクラスを追加 (仮コミット, ビルドもstartもさせていない)

* fix

* add logger and fix url preview

* fix ip check

* enhance logger and error handling

* fix

* fix

* clean up

* Use custom fetcher for ApRequest / ApResolver

* bypassProxyはproxyBypassHostsに判断を委譲するように

* set maxRedirections (default 3, ApRequest/ApResolver: 0)

* fix

* wip????

* wip

* ✌️

* set .node-version

* clean up

* refactor

* clean up

* refactor

* refactor detectRequestType

* rename detectResponseType

* ✌️

* fix

* wip

* clean up

* no got

* remove got

* wip

* ✌️

* fix

* clean up

* remove unnnecessary const

* good cleanup

* no stream

* Revert "no stream"

This reverts commit 636f9192fcd2b17e71bbf6b5b106b490e0f66244.

* fix

* cache-control: max-age=300 to error

* refactor cleanup