Feat: TrustGraph i18n & Documentation Translation Updates (#781)

Native CLI i18n: The TrustGraph CLI has built-in translation support
that dynamically loads language strings. You can test and use
different languages by simply passing the --lang flag (e.g., --lang
es for Spanish, --lang ru for Russian) or by configuring your
environment's LANG variable.

Automated Docs Translations: This PR introduces autonomously
translated Markdown documentation into several target languages,
including Spanish, Swahili, Portuguese, Turkish, Hindi, Hebrew,
Arabic, Simplified Chinese, and Russian.

docs/README.zh-cn.md

@@ -0,0 +1,28 @@
+---
+layout: default
+title: "TrustGraph 文档"
+parent: "Chinese (Beta)"
+---
+
+# TrustGraph 文档
+
+> **Beta Translation:** This document was translated via Machine Learning and as such may not be 100% accurate. All non-English languages are currently classified as Beta.
+
+欢迎使用 TrustGraph！为了获得全面的文档，请访问：
+
+## 📖 [https://docs.trustgraph.ai](https://docs.trustgraph.ai)
+
+主文档站点包含：
+
+- **[概述](https://docs.trustgraph.ai/overview)** - 介绍 TrustGraph 的概念和架构
+- **[指南](https://docs.trustgraph.ai/guides)** - 逐步教程和操作指南
+- **[部署](https://docs.trustgraph.ai/deployment)** - 部署选项和配置
+- **[参考](https://docs.trustgraph.ai/reference)** - API 规范和 CLI 文档
+
+## 快速入门
+
+**您是 TrustGraph 的新手吗？** 请从 [概述](https://docs.trustgraph.ai/overview) 开始，了解系统。
+
+**准备部署了吗？** 请查看 [部署指南](https://docs.trustgraph.ai/deployment)。
+
+**要与代码集成？** 请查看 [API 参考](https://docs.trustgraph.ai/reference)，其中包含 REST、WebSocket 和 SDK 文档。