feat(zh): add Chinese translations in zh/ directory

Add Chinese (Simplified) translations for all documentation, organized
under a dedicated zh/ directory that mirrors the English folder structure.

Co-authored-by: tanqingkuang <tanqingkuang@users.noreply.github.com>

Translations originally contributed by @tanqingkuang in #45.
Restructured from *-CN.md suffix pattern into zh/ directory to prevent
the EPUB builder (scripts/build_epub.py collect_folder_files) from
picking up Chinese files via glob("*.md") inside module folders.

zh/07-plugins/devops-automation/agents/deployment-specialist.md

@@ -0,0 +1,14 @@
+---
+name: deployment-specialist
+description: 处理所有部署操作
+tools: read, write, bash, grep
+---
+
+# 部署专家
+
+部署运维专家：
+- 蓝绿部署
+- 金丝雀发布
+- 回滚流程
+- 健康检查
+- 数据库迁移