🤖 docs: mirror landing revamp for zh-CN

What:
- add zh-CN versions of landing revamp pages (features, quickstart, docs directory, network model, credits)
- refresh zh-CN index and hubs, plus glossary entries

Why:
- keep Chinese docs aligned with the new English landing experience
- ensure navigation surfaces the new entry points

Tests:
- pnpm build && pnpm check && pnpm test

docs/.i18n/glossary.zh-CN.json

@@ -39,6 +39,26 @@
     "source": "Getting started",
     "target": "入门指南"
   },
+  {
+    "source": "Quick start",
+    "target": "快速开始"
+  },
+  {
+    "source": "Quick Start",
+    "target": "快速开始"
+  },
+  {
+    "source": "Docs directory",
+    "target": "文档目录"
+  },
+  {
+    "source": "Credits",
+    "target": "致谢"
+  },
+  {
+    "source": "Features",
+    "target": "功能"
+  },
   {
     "source": "DMs",
     "target": "私信"