per-locale bundle & inline locale (#16369)

* feat: split entry file by locale name

* chore: とりあえず transform hook で雑に分割

* chore: とりあえず transform 結果をいい感じに

* chore: concurrent buildで高速化

* chore: vite ではローケルのないものをビルドして後処理でどうにかするように

* chore: 後処理のためにi18n.jを単体になるように切り出す

* chore: use typescript

* chore: remove unref(i18n) in vite build process

* chore: inline variable

* fix: build error

* fix: i18n.ts.something.replaceAll() become error

* chore: ignore export specifier from error

* chore: support i18n.tsx as object

* chore: process literal for all files

* chore: split config and locale

* chore: inline locale name

* chore: remove updating locale in boot common

* chore: use top-level await to load locales

* chore: inline locale

* chore: remove loading locale from boot.js

* chore: remove loading locale from boot.js

* コメント追加

* fix test; fetchに失敗する

* import削除ログをdebugレベルに

* fix: watch pug

* chore: use hash for entry files

* chore: remove es-module-lexer from dependencies

* chore: move to frontend-builder

* chore: use inline locale in embed

* chore: refetch json on hot reload

* feat: store localization related to boot.js in backend in bootloaderLocales localstorage

* 応急処置を戻す

* fix spex

* fix `Using i18n identifier "e" directly. Skipping inlining.` warning

* refactor: use scriptsDir parameter

* chore: remove i18n from depmap

* chore: make build crash if errors

* error -> warn few conditions

* use inline object

* update localstorage keys

* remove accessing locale localstorage

* fix: failed to process i18n.tsx.aaa({x:i18n.bbb})

packages/frontend-embed/package.json

@@ -4,7 +4,7 @@
 	"type": "module",
 	"scripts": {
 		"watch": "vite",
-		"build": "vite build",
+		"build": "tsx build.ts",
 		"typecheck": "vue-tsc --noEmit",
 		"eslint": "eslint --quiet \"src/**/*.{ts,vue}\"",
 		"lint": "pnpm typecheck && pnpm eslint"
@@ -20,8 +20,8 @@
 		"astring": "1.9.0",
 		"buraha": "0.0.1",
 		"estree-walker": "3.0.3",
-		"icons-subsetter": "workspace:*",
 		"frontend-shared": "workspace:*",
+		"icons-subsetter": "workspace:*",
 		"json5": "2.2.3",
 		"mfm-js": "0.25.0",
 		"misskey-js": "workspace:*",
@@ -63,6 +63,7 @@
 		"nodemon": "3.1.10",
 		"prettier": "3.6.2",
 		"start-server-and-test": "2.0.12",
+		"tsx": "4.20.3",
 		"vite-plugin-turbosnap": "1.0.3",
 		"vue-component-type-helpers": "3.0.5",
 		"vue-eslint-parser": "10.2.0",