initial: project structure and documentation setup

- Create project directory structure
- Initialize Go module
- Set up development documentation (why.md, taolun.md, changelog.md, memory.md, AGENTS.md)
- Configure YAML config template
- Set up .gitignore and .env.example
- Design OOP architecture with factory and strategy patterns

Version: 0.0.1

.gitignore

@@ -0,0 +1,37 @@
+# 二进制文件
+yoyo
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# 测试
+*.test
+*.out
+coverage.txt
+
+# 配置文件（敏感信息）
+.env
+config.local.yaml
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# 依赖
+vendor/
+
+# 构建输出
+dist/
+build/
+
+# Go工作区
+go.work
+go.work.sum
+
+# 本地配置文件
+configs/local.yaml
+configs/*.local.yaml