release: v0.2.0 — TypeScript 源码重构

### Changed
- 全部源码从 JavaScript 迁移到 TypeScript (strict mode)
- core.js (1244行) 拆分为 toast.ts + api.ts + templates.ts
- 删除手动维护的 types/index.d.ts，类型从源码自动生成
- 构建工具链: Babel → ts-jest, 新增 @rollup/plugin-typescript
- 新增 rollup-plugin-dts 生成合并 .d.ts

### Added
- tsconfig.json (strict: true)
- src/types.ts 核心类型模块 (39 个导出类型)
- .eslintrc.json (@typescript-eslint)
- .gitea/workflows/ci.yml (Node 18/20/22/24 矩阵)
- CHANGELOG.md

### Aligned with metona-starter
- package.json: type:module, engines≥16, prepublishOnly
- rollup.config.js: dts plugin, port 3001
- jest.config.cjs, build.sh, serve.sh, .gitignore (.npmrc)

### Removed
- babel.config.js, types/ 目录, 所有 src/*.js

build.sh

@@ -1,83 +1,25 @@
 #!/bin/bash
 
-# MetonaToast 构建脚本
+# 构建脚本 — 安装依赖 → 测试 → 构建
 
-echo "🍞 MetonaToast 构建脚本"
-echo "========================"
+echo "🔨 MetonaToast 构建脚本"
 
-# 检查Node.js
 if ! command -v node &> /dev/null; then
-    echo "❌ 错误: 未找到Node.js"
+    echo "❌ 未找到 Node.js"
     exit 1
 fi
 
-# 检查npm
-if ! command -v npm &> /dev/null; then
-    echo "❌ 错误: 未找到npm"
-    exit 1
-fi
+echo "✅ Node.js: $(node -v)"
 
-echo "✅ Node.js版本: $(node -v)"
-echo "✅ npm版本: $(npm -v)"
-
-# 安装依赖
-echo ""
 echo "📦 安装依赖..."
-npm install
+npm install || exit 1
 
-if [ $? -ne 0 ]; then
-    echo "❌ 依赖安装失败"
-    exit 1
-fi
-
-echo "✅ 依赖安装完成"
-
-# 运行测试
-echo ""
 echo "🧪 运行测试..."
-npm test
+npm test || exit 1
 
-if [ $? -ne 0 ]; then
-    echo "❌ 测试失败"
-    exit 1
-fi
+echo "🔨 构建..."
+npm run build || exit 1
 
-echo "✅ 测试通过"
-
-# 构建项目
 echo ""
-echo "🔨 构建项目..."
-npm run build
-
-if [ $? -ne 0 ]; then
-    echo "❌ 构建失败"
-    exit 1
-fi
-
 echo "✅ 构建完成"
-
-# 显示构建结果
-echo ""
-echo "📊 构建结果:"
-echo "========================"
 ls -lh dist/
-
-echo ""
-echo "✅ 构建成功完成！"
-echo ""
-echo "📁 文件结构:"
-echo "  - dist/metona-toast.js      (UMD格式)"
-echo "  - dist/metona-toast.esm.js  (ES Module格式)"
-echo "  - dist/metona-toast.cjs.js  (CommonJS格式)"
-echo "  - dist/metona-toast.min.js  (压缩版本)"
-echo "  - dist/metona-toast.d.ts    (TypeScript声明)"
-echo ""
-echo "🚀 使用方法:"
-echo "  1. 浏览器: <script src='dist/metona-toast.js'></script>"
-echo "  2. ES Module: import MeToast from 'dist/metona-toast.esm.js'"
-echo "  3. CommonJS: const MeToast = require('dist/metona-toast.cjs.js')"
-echo ""
-echo "📝 示例:"
-echo "  打开 site/index.html 查看官网"
-echo "  打开 site/demo.html 查看演示"
-echo ""