feat(i18n): add 8 new supported languages (es, fr, id, ja, pt, ru, tr, zh-Hant)

Extended internationalization from 4 to 12 languages. Added Spanish, French, Indonesian, Japanese, Portuguese, Russian, Turkish, and Traditional Chinese.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: ericyangpan

cspell.json

@@ -1,8 +1,8 @@
 {
   "$schema": "https://raw.githubusercontent.com/streetsidesoftware/cspell/main/cspell.schema.json",
   "version": "0.2",
-  "language": "en,de,es,fr,pt,ru",
-  "dictionaries": ["de", "es", "fr", "pt", "ru"],
+  "language": "en,de,es,fr,id,it,pt,ru,tr",
+  "dictionaries": ["de", "es", "fr", "id", "it", "pt", "ru", "tr"],
   "dictionaryDefinitions": [
     {
       "name": "de",
@@ -19,6 +19,16 @@
       "path": "node_modules/@cspell/dict-fr-fr/fr-fr.trie.gz",
       "description": "French dictionary"
     },
+    {
+      "name": "id",
+      "path": "node_modules/@cspell/dict-id-id/dict/id-id.trie",
+      "description": "Indonesian dictionary"
+    },
+    {
+      "name": "it",
+      "path": "node_modules/@cspell/dict-it-it/dict/it-it.trie",
+      "description": "Italian dictionary"
+    },
     {
       "name": "pt",
       "path": "node_modules/@cspell/dict-pt-pt/dict/Portuguese-European.trie.gz",
@@ -28,29 +38,75 @@
       "name": "ru",
       "path": "node_modules/@cspell/dict-ru_ru/ru_ru.trie.gz",
       "description": "Russian dictionary"
+    },
+    {
+      "name": "tr",
+      "path": "node_modules/@cspell/dict-tr-tr/Turkish.trie.gz",
+      "description": "Turkish dictionary"
     }
   ],
   "useGitignore": true,
   "ignorePaths": ["cloudflare-env.d.ts", "docs", ".claude"],
   "words": [
-    "agentic",
-    "agentischer",
-    "AiCodingStack",
+    "Anthropics",
+    "Benefíciate",
+    "bienvene",
     "berechtigungsbasierter",
     "BMAD",
     "BYOK",
+    "Coden",
+    "Codierungsaufgaben",
+    "Codierungsbenchmarks",
+    "Codierungsmodell",
+    "fortschrittlichestes",
+    "Funktionsaufrufung",
+    "gtag",
+    "görselleştirin",
+    "hochkapazitatives",
+    "Intinya",
+    "Maks",
+    "Multimodal",
+    "Optimierung",
+    "orkestr",
+    "Porcentagem",
+    "Sugeriendo",
+    "RAG",
+    "refactorización",
+    "refactorieren",
+    "refatoração",
+    "Refatoração",
+    "Spesifikasyon",
+    "Spesifikasyonlar",
+    "spesifikasyonlar",
+    "spesifikasyonları",
+    "spesifikasyonlarını",
+    "TTFB",
+    "Türkçe",
+    "Vervollständigungstool",
+    "yığınınızı",
+    "Бенчмарки",
+    "Мультимодальное",
+    "мультимодальные",
+    "İndir",
+    "İzleme",
+    "İNDEKS",
+    "agentic",
+    "agentischer",
+    "AiCodingStack",
     "CLIs",
+    "CLI'lere",
     "cmdk",
     "Codierungs",
     "Codierungsassistent",
     "Codierungsassistenz",
-    "Codierungserfahrung",
     "Codierungsplattform",
     "Codierungsunterstützung",
     "deepv",
     "dvcode",
     "Entwicklungsworkflows",
     "hrefs",
+    "IDE'lere",
+    "IDE'lerin",
     "Integrationen",
     "Junie",
     "Kuaishou",
@@ -64,11 +120,106 @@
     "Qoder",
     "QoderCLI",
     "Qwen",
-    "RLHF",
     "Roo",
     "shareAI",
     "TRAE",
-    "linkedin"
+    "linkedin",
+    "Видеоклауд",
+    "Сообщественная",
+    "агентачный",
+    "агентного",
+    "агентные",
+    "агентным",
+    "агентными",
+    "интеллекцию",
+    "инференса",
+    "кодерского",
+    "мульти",
+    "мультимодальная",
+    "мультимодальным",
+    "мультимодальных",
+    "настр",
+    "настраивае",
+    "оркестрирует",
+    "пания",
+    "помошник",
+    "фронтенд",
+    "agenticen",
+    "ajent",
+    "akislari",
+    "akislarindaki",
+    "akislarini",
+    "akislarni",
+    "alaninda",
+    "anlayisi",
+    "aracilar",
+    "araciligiyla",
+    "araclari",
+    "arastirma",
+    "autó",
+    "autono",
+    "autônoma",
+    "autônomo",
+    "autônomos",
+    "ayiklama",
+    "berbayar",
+    "cagirme",
+    "calistiran",
+    "calistirin",
+    "canli",
+    "CI'nizde",
+    "construíndo",
+    "customizaveis",
+    "d'intelligenc",
+    "demokratizasyonunu",
+    "desteg",
+    "detayli",
+    "didesain",
+    "Droid'ları",
+    "Experitez",
+    "Granüler",
+    "hatalari",
+    "hizlandiran",
+    "hizli",
+    "hook'larını",
+    "IDE'nize",
+    "İnsanlar",
+    "karmaik",
+    "komutlari",
+    "kullanin",
+    "kullanir",
+    "kurallarinizi",
+    "Mengkonversi",
+    "mengorkestrasi",
+    "modalli",
+    "modlu",
+    "modu",
+    "odakli",
+    "optimizasyon",
+    "orkestrasyonu",
+    "orkestre",
+    "pengkodean",
+    "pengodean",
+    "privibilidade",
+    "programcıdır",
+    "projectos",
+    "refactorisation",
+    "Refactorisent",
+    "Refactorizan",
+    "Refatoram",
+    "saglayicinin",
+    "saglayicisiyla",
+    "satci",
+    "specialisée",
+    "tabanli",
+    "tasarlanmisitir",
+    "tasarlanmistir",
+    "teknologların",
+    "yanitlar",
+    "yardimci",
+    "yardimcisidir",
+    "yayin",
+    "yazin"
   ],
   "allowCompoundWords": true
 }

src/components/controls/LanguageSwitcher.tsx

@@ -4,7 +4,7 @@ import { Languages } from 'lucide-react'
 import { usePathname, useRouter } from 'next/navigation'
 import { useLocale, useTranslations } from 'next-intl'
 import { useEffect, useRef, useState } from 'react'
-import { type Locale, localeLabels, locales } from '@/i18n/config'
+import { type Locale, localeNames, locales } from '@/i18n/config'
 
 // Type definition for Cookie Store API
 interface CookieStoreSetOptions {
@@ -125,7 +125,7 @@ export default function LanguageSwitcher() {
         aria-expanded={isOpen}
       >
         <Languages className="footer-control-icon" />
-        {localeLabels[locale]}
+        {localeNames[locale]}
       </button>
 
       {isOpen && (
@@ -139,7 +139,7 @@ export default function LanguageSwitcher() {
                 loc === locale ? 'bg-[var(--color-hover)] font-medium' : 'font-light'
               }`}
             >
-              {localeLabels[loc]}
+              {localeNames[loc]}
               {loc === locale && ' ✓'}
             </button>
           ))}

src/i18n/config.ts

@@ -1,21 +1,34 @@
-export const locales = ['en', 'de', 'zh-Hans', 'ko'] as const
+export const locales = [
+  'en',
+  'de',
+  'es',
+  'fr',
+  'id',
+  'ja',
+  'ko',
+  'pt',
+  'ru',
+  'tr',
+  'zh-Hans',
+  'zh-Hant',
+] as const
 export type Locale = (typeof locales)[number]
 
 export const defaultLocale: Locale = 'en'
 
 export const localeNames: Record<Locale, string> = {
   en: 'English',
   de: 'Deutsch',
-  'zh-Hans': '简体中文',
-  ko: '한국어',
-}
-
-export const localeLabels: Record<Locale, string> = {
-  en: 'EN',
-  de: 'DE',
-  'zh-Hans': '简中',
-
+  es: 'Español',
+  fr: 'Français',
+  id: 'Bahasa Indonesia',
+  ja: '日本語',
   ko: '한국어',
+  pt: 'Português',
+  ru: 'Русский',
+  tr: 'Türkçe',
+  'zh-Hans': '简体中文',
+  'zh-Hant': '繁體中文',
 }
 
 /**
@@ -25,6 +38,14 @@ export const localeLabels: Record<Locale, string> = {
 export const localeToOgLocale: Record<Locale, string> = {
   en: 'en_US',
   de: 'de_DE',
-  'zh-Hans': 'zh_CN',
+  es: 'es_ES',
+  fr: 'fr_FR',
+  id: 'id_ID',
+  ja: 'ja_JP',
   ko: 'ko_KR',
+  pt: 'pt_PT',
+  ru: 'ru_RU',
+  tr: 'tr_TR',
+  'zh-Hans': 'zh_CN',
+  'zh-Hant': 'zh_TW',
 }

vitest.config.ts

@@ -1,3 +1,4 @@
+import path from 'node:path'
 import { defineConfig } from 'vitest/config'
 
 /**
@@ -6,6 +7,12 @@ import { defineConfig } from 'vitest/config'
  * We run validations in a Node environment (filesystem + schemas + JSON parsing).
  */
 export default defineConfig({
+  resolve: {
+    alias: {
+      '@': path.resolve(__dirname, './src'),
+      '@content': path.resolve(__dirname, './content'),
+    },
+  },
   test: {
     environment: 'node',
     // Use threads pool to avoid fork process termination issues in constrained environments.