Docs: update zh-CN translations and pipeline

What:
- update zh-CN glossary, TM, and translator prompt
- regenerate zh-CN docs and apply targeted fixes
- add zh-CN AGENTS pipeline guidance

Why:
- address terminology/spacing feedback from #6995

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

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

@@ -5,7 +5,7 @@
   },
   {
     "source": "Gateway",
-    "target": "Gateway网关"
+    "target": "Gateway 网关"
   },
   {
     "source": "Pi",
@@ -17,11 +17,11 @@
   },
   {
     "source": "Skills config",
-    "target": "Skills配置"
+    "target": "Skills 配置"
   },
   {
     "source": "Skills Config",
-    "target": "Skills配置"
+    "target": "Skills 配置"
   },
   {
     "source": "local loopback",
@@ -47,6 +47,22 @@
     "source": "DM",
     "target": "私信"
   },
+  {
+    "source": "sandbox",
+    "target": "沙箱"
+  },
+  {
+    "source": "Sandbox",
+    "target": "沙箱"
+  },
+  {
+    "source": "sandboxing",
+    "target": "沙箱隔离"
+  },
+  {
+    "source": "Sandboxing",
+    "target": "沙箱隔离"
+  },
   {
     "source": "sandboxed",
     "target": "沙箱隔离"
@@ -55,6 +71,46 @@
     "source": "Sandboxed",
     "target": "沙箱隔离"
   },
+  {
+    "source": "Sandboxing note",
+    "target": "沙箱注意事项"
+  },
+  {
+    "source": "Companion apps",
+    "target": "配套应用"
+  },
+  {
+    "source": "expected keys",
+    "target": "预期键名"
+  },
+  {
+    "source": "block streaming",
+    "target": "分块流式传输"
+  },
+  {
+    "source": "Block streaming",
+    "target": "分块流式传输"
+  },
+  {
+    "source": "Discovery + transports",
+    "target": "设备发现 + 传输协议"
+  },
+  {
+    "source": "Discovery",
+    "target": "设备发现"
+  },
+  {
+    "source": "Network model",
+    "target": "网络模型"
+  },
+  {
+    "source": "for full details",
+    "target": "了解详情"
+  },
+  {
+    "source": "First 60 seconds",
+    "target": "最初的六十秒"
+  },
   {
     "source": "Auth: where it lives (important)",
     "target": "凭证：存储位置（重要）"