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

src/templates.ts

@@ -0,0 +1,79 @@
+/**
+ * MetonaToast Templates — HTML 模板辅助函数
+ * @module templates
+ * @version 0.2.0
+ * @description confirm / prompt / progress / action 的 DOM 模板
+ */
+
+import { escapeHTML } from './utils.js';
+import { t } from './i18n.js';
+import type { ActionButton, ConfirmOptions, PromptOptions, ProgressOptions } from './types.js';
+
+/**
+ * 按钮行模板 — confirm/prompt 共用
+ */
+export const btnRow = (buttons: string): string => `
+  <div style="display: flex; gap: 8px; margin-top: 12px;">
+    ${buttons}
+  </div>`;
+
+/**
+ * 确认对话框模板
+ */
+export const confirmHTML = (opts: ConfirmOptions): string => {
+  const confirmText = opts.confirmText || t('confirm');
+  const cancelText = opts.cancelText || t('cancel');
+  const confirmColor = opts.confirmColor || '#10b981';
+  const cancelColor = opts.cancelColor || '#6b7280';
+  return btnRow(`
+    <button class="met-confirm-btn" style="flex:1;padding:8px 16px;border:none;border-radius:6px;background:${confirmColor};color:white;cursor:pointer;font-size:13px">${escapeHTML(confirmText)}</button>
+    <button class="met-cancel-btn" style="flex:1;padding:8px 16px;border:none;border-radius:6px;background:${cancelColor};color:white;cursor:pointer;font-size:13px">${escapeHTML(cancelText)}</button>
+  `);
+};
+
+/**
+ * 输入对话框模板
+ */
+export const promptHTML = (opts: PromptOptions): string => {
+  const submitText = opts.submitText || t('confirm');
+  const cancelText = opts.cancelText || t('cancel');
+  const submitColor = opts.submitColor || '#3b82f6';
+  const cancelColor = opts.cancelColor || '#6b7280';
+  return `
+    <input type="${opts.inputType || 'text'}" 
+           class="met-input" 
+           placeholder="${escapeHTML(opts.placeholder || '')}"
+           value="${escapeHTML(opts.defaultValue || '')}"
+           style="width:100%;padding:8px 12px;border:1px solid rgba(0,0,0,0.1);border-radius:6px;font-size:13px;margin-top:8px;background:transparent;color:inherit;box-sizing:border-box">
+    ${btnRow(`
+      <button class="met-submit-btn" style="flex:1;padding:8px 16px;border:none;border-radius:6px;background:${submitColor};color:white;cursor:pointer;font-size:13px">${escapeHTML(submitText)}</button>
+      <button class="met-cancel-btn" style="flex:1;padding:8px 16px;border:none;border-radius:6px;background:${cancelColor};color:white;cursor:pointer;font-size:13px">${escapeHTML(cancelText)}</button>
+    `)}
+  `;
+};
+
+/**
+ * 进度条模板
+ */
+export const progressHTML = (opts: ProgressOptions): string => {
+  const color = opts.progressColor || '#3b82f6';
+  return `
+    <div class="met-progress-bar" style="width:100%;height:8px;background:rgba(0,0,0,0.1);border-radius:4px;margin-top:12px;overflow:hidden">
+      <div class="met-progress-fill" style="width:0%;height:100%;background:${color};border-radius:4px;transition:width 0.3s ease"></div>
+    </div>
+    <div class="met-progress-text" style="font-size:12px;opacity:0.7;margin-top:4px;text-align:right">0%</div>
+  `;
+};
+
+/**
+ * Action Toast 模板
+ */
+export const actionHTML = (actions: ActionButton[]): string => {
+  if (!Array.isArray(actions) || actions.length === 0) return '';
+  const buttons = actions.map((a, i) => {
+    const bg = a.style?.background || a.color || '#6366f1';
+    const cls = `met-action-btn-${i}`;
+    return `<button class="${cls}" style="flex:1;padding:6px 12px;border:none;border-radius:6px;background:${bg};color:white;cursor:pointer;font-size:12px;font-weight:500">${escapeHTML(a.text || '')}</button>`;
+  }).join('');
+  return btnRow(buttons);
+};