i18n: translate en to English, convert zh-CN to Simplified Chinese

- en: Translate all 59 .md files and 26 _meta.ts files to English
- zh-CN: Convert all 59 .md files and 26 _meta.ts from Traditional to Simplified Chinese using opencc
- Update internal links in en locale from /zh-TW/ to /en/ paths

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: mujou0612

pages/en/_meta.ts

@@ -1,50 +1,14 @@
 export default {
-  index:
-  {
-    title: "基本介紹"
-  },
-  quick_start:
-  {
-    title: "快速開始"
-  },
-  basic_integration:
-  {
-    title: "基本串接"
-  },
-  auth:
-  {
-    title: "權限驗證"
-  },
-  user: 
-  {
-    title: "用戶"
-  },
-  room: 
-  {
-    title: "聊天室"
-  },
-  message: 
-  {
-    title: "訊息"
-  },
-  moderation:
-  {
-    title: "管理機制"
-  },
-  push:
-  {
-    title: "推播通知"
-  },
-  config:
-  {
-    title: "系統設定"
-  },
-  monitoring:
-  {
-    title: "監控"
-  },
-  webhook:
-  {
-    title: "Webhook"
-  }
+  index: { title: "Introduction" },
+  quick_start: { title: "Quick Start" },
+  basic_integration: { title: "Basic Integration" },
+  auth: { title: "Authentication" },
+  user: { title: "Users" },
+  room: { title: "Rooms" },
+  message: { title: "Messages" },
+  moderation: { title: "Moderation" },
+  push: { title: "Push Notifications" },
+  config: { title: "Configuration" },
+  monitoring: { title: "Monitoring" },
+  webhook: { title: "Webhook" }
 }

pages/en/auth/_meta.ts

@@ -1,5 +1,3 @@
 export default {
-  "key": {
-    title: "金鑰"
-  }
-}
+  "key": { title: "Keys" }
+}

pages/en/auth/key/_meta.ts

@@ -1,10 +1,4 @@
 export default {
-  "api-key": {
-    title: "API 金鑰"
-  },
-  "client-key":
-  {
-    title: "用戶端金鑰"
-  }
+  "api-key": { title: "API Key" },
+  "client-key": { title: "Client Key" }
 }
-