docs: 更新文档以反映v5.4.0版本更新

更新内容：
- CHANGELOG.md：添加v5.4.0完整更新日志
  - CLI模板系统重组（19个模板，优先级前缀）
  - Gemini 404错误回退策略
  - 21处模板引用更新
  - 目录结构优化

- README.md & README_CN.md：更新版本号和核心亮点
  - 版本徽章：v5.2.0 → v5.4.0
  - 版本说明：更新为v5.4核心改进
  - 突出优先级模板、错误处理、统一引用、组织优化

文档变更详情：
- 完整的v5.4.0变更日志（141行）
- 双语README版本信息同步更新
- 清晰的升级说明和使用指南

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

README.md

@@ -2,7 +2,7 @@
 
 <div align="center">
 
-[![Version](https://img.shields.io/badge/version-v5.2.0-blue.svg)](https://github.com/catlog22/Claude-Code-Workflow/releases)
+[![Version](https://img.shields.io/badge/version-v5.4.0-blue.svg)](https://github.com/catlog22/Claude-Code-Workflow/releases)
 [![License](https://img.shields.io/badge/license-MIT-green.svg)](LICENSE)
 [![Platform](https://img.shields.io/badge/platform-Windows%20%7C%20Linux%20%7C%20macOS-lightgrey.svg)]()
 
@@ -14,13 +14,13 @@
 
 **Claude Code Workflow (CCW)** transforms AI development from simple prompt chaining into a robust, context-first orchestration system. It solves execution uncertainty and error accumulation through structured planning, deterministic execution, and intelligent multi-model orchestration.
 
-> **🎉 Version 5.2: Memory Commands Enhancement**
+> **🎉 Version 5.4: CLI Template System Reorganization**
 >
 > **Core Improvements**:
-> - ✅ **Batch Processing** - Single Level 1 task handles all module trees (67% fewer tasks)
-> - ✅ **Dual Execution Modes** - Agent Mode and CLI Mode (--cli-execute) support
-> - ✅ **Pre-computed Analysis** - Unified analysis eliminates redundant CLI calls (67% reduction)
-> - ✅ **Performance Boost** - 67% fewer file reads, 33% fewer total tasks
+> - ✅ **Priority-Based Templates** - 19 templates reorganized with clear priority prefixes (01-universal, 02-specialized, 03-domain)
+> - ✅ **Enhanced Error Handling** - Automatic Gemini 404 fallback to gemini-2.5-pro
+> - ✅ **Unified References** - All 21 template references updated across 5 command files
+> - ✅ **Better Organization** - Bug diagnosis moved to analysis/, redundant directories removed
 >
 > See [CHANGELOG.md](CHANGELOG.md) for full details.