refactor: 重构目录结构以支持 i18n

创建 'i18n' 目录以存放多语言内容。将所有现有的中文内容（文档、提示词、技能、README）移动到 'i18n/zh/' 中。添加了新的根 README 作为语言入口，并为英文（'en'）翻译创建了占位符结构。

skills/claude-cookbooks/references/patterns.md

@@ -1,20 +0,0 @@
-# Building Effective Agents Cookbook
-
-Reference implementation for [Building Effective Agents](https://anthropic.com/research/building-effective-agents) by Erik Schluntz and Barry Zhang.
-
-This repository contains example minimal implementations of common agent workflows discussed in the blog:
-
-- Basic Building Blocks
-  - Prompt Chaining
-  - Routing
-  - Multi-LLM Parallelization
-- Advanced Workflows
-  - Orchestrator-Subagents
-  - Evaluator-Optimizer
-
-## Getting Started
-See the Jupyter notebooks for detailed examples:
-
-- [Basic Workflows](basic_workflows.ipynb)
-- [Evaluator-Optimizer Workflow](evaluator_optimizer.ipynb) 
-- [Orchestrator-Workers Workflow](orchestrator_workers.ipynb)