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

rollup.config.js

@@ -1,5 +1,6 @@
 import resolve from '@rollup/plugin-node-resolve';
 import commonjs from '@rollup/plugin-commonjs';
+import typescript from '@rollup/plugin-typescript';
 import terser from '@rollup/plugin-terser';
 import dts from 'rollup-plugin-dts';
 import serve from 'rollup-plugin-serve';
@@ -8,128 +9,99 @@ import livereload from 'rollup-plugin-livereload';
 const isDev = process.env.ROLLUP_WATCH;
 const isProd = process.env.NODE_ENV === 'production';
 
-// 基础配置
-const baseConfig = {
-  input: 'src/index.js',
-  plugins: [
-    resolve(),
-    commonjs(),
-  ],
-};
+// 基础插件
+const basePlugins = [
+  resolve(),
+  commonjs(),
+  typescript({
+    tsconfig: './tsconfig.json',
+    declaration: false,
+    sourceMap: !isProd,
+  }),
+];
 
 // 开发服务器配置
 const devPlugins = isDev ? [
   serve({
     open: true,
     contentBase: ['site', 'dist'],
-    port: 3000,
+    port: 3001,
   }),
   livereload({
     watch: ['src', 'site'],
   }),
 ] : [];
 
-// 生产环境配置
-const prodPlugins = isProd ? [
-  terser({
-    compress: {
-      drop_console: true,
-      drop_debugger: true,
-      pure_funcs: ['console.log', 'console.warn'],
-    },
-    format: {
-      comments: false,
-    },
-  }),
-] : [];
-
 // 输出配置
 export default [
-  // UMD格式（浏览器）
+  // UMD（开发模式）
   {
-    ...baseConfig,
+    input: 'src/index.ts',
     output: {
       file: 'dist/metona-toast.js',
       format: 'umd',
       name: 'MeToast',
       exports: 'named',
-      sourcemap: !isProd,
-      globals: {},
+      sourcemap: true,
     },
-    plugins: [
-      ...baseConfig.plugins,
-      ...devPlugins,
-      ...prodPlugins,
-    ],
+    plugins: [...basePlugins, ...devPlugins],
   },
-  
-  // ESM格式（现代浏览器/打包工具）
-  {
-    ...baseConfig,
-    output: {
-      file: 'dist/metona-toast.esm.js',
-      format: 'es',
-      exports: 'named',
-      sourcemap: !isProd,
+  // 生产构建（非 dev 模式时输出全格式）
+  ...(isDev ? [] : [
+    // ESM
+    {
+      input: 'src/index.ts',
+      output: {
+        file: 'dist/metona-toast.esm.js',
+        format: 'es',
+        exports: 'named',
+        sourcemap: true,
+      },
+      plugins: basePlugins,
     },
-    plugins: [
-      ...baseConfig.plugins,
-      ...prodPlugins,
-    ],
-  },
-  
-  // CommonJS格式（Node.js）
-  {
-    ...baseConfig,
-    output: {
-      file: 'dist/metona-toast.cjs.js',
-      format: 'cjs',
-      exports: 'named',
-      sourcemap: !isProd,
+    // CommonJS
+    {
+      input: 'src/index.ts',
+      output: {
+        file: 'dist/metona-toast.cjs.js',
+        format: 'cjs',
+        exports: 'named',
+        sourcemap: true,
+      },
+      plugins: basePlugins,
     },
-    plugins: [
-      ...baseConfig.plugins,
-      ...prodPlugins,
-    ],
-  },
-  
-  // 压缩版本（UMD）
-  {
-    ...baseConfig,
-    output: {
-      file: 'dist/metona-toast.min.js',
-      format: 'umd',
-      name: 'MeToast',
-      exports: 'named',
-      sourcemap: false,
-      globals: {},
+    // UMD 压缩版
+    {
+      input: 'src/index.ts',
+      output: {
+        file: 'dist/metona-toast.min.js',
+        format: 'umd',
+        name: 'MeToast',
+        exports: 'named',
+        sourcemap: false,
+      },
+      plugins: [
+        ...basePlugins,
+        terser({
+          compress: {
+            drop_console: true,
+            drop_debugger: true,
+            pure_funcs: ['console.log', 'console.warn'],
+            passes: 2,
+          },
+          format: { comments: false },
+          mangle: { toplevel: true },
+        }),
+      ],
     },
-    plugins: [
-      ...baseConfig.plugins,
-      terser({
-        compress: {
-          drop_console: true,
-          drop_debugger: true,
-          pure_funcs: ['console.log', 'console.warn'],
-          passes: 2,
-        },
-        format: {
-          comments: false,
-        },
-        mangle: {
-          toplevel: true,
-        },
-      }),
-    ],
-  },
-  
-  // TypeScript声明文件
-  {
-    input: 'types/index.d.ts',
-    output: {
-      file: 'dist/metona-toast.d.ts',
-      format: 'es',
+    // TypeScript 声明文件合并
+    {
+      input: 'src/index.ts',
+      output: {
+        file: 'dist/metona-toast.d.ts',
+        format: 'es',
+      },
+      plugins: [dts()],
     },
-    plugins: [dts()],
-  },
+  ]),
 ];