feat: add Vue2 exercises for dynamic styles, lifecycle methods, component communication, and course management dashboard

- Implement dynamic styles and event handling in Vue2 with a card component.
- Create lifecycle methods exercise to simulate async data loading and instance destruction.
- Develop a component communication exercise with props, events, and slots.
- Build a comprehensive course management dashboard with filtering, statistics, and component interactions.

07-vue2/02-template-bindings/README.md

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+# 练习 2：模板语法和绑定
+
+## 目标
+
+学会把数据绑定到属性和事件上，而不是手动改 DOM。
+
+## 你要练什么
+
+- `{{ }}`
+- `v-bind`
+- `v-on`
+- 事件方法
+
+## 任务
+
+请基于页面结构完成以下操作：
+
+- 显示课程名和讲师名
+- 绑定图片地址和课程链接
+- 点击按钮后切换收藏状态
+
+## 文件
+
+- [starter.html](/Users/lijiaqing/home/wwwroot/front-end-example/07-vue2/02-template-bindings/starter.html)
+- [starter.js](/Users/lijiaqing/home/wwwroot/front-end-example/07-vue2/02-template-bindings/starter.js)
+- [answer.html](/Users/lijiaqing/home/wwwroot/front-end-example/07-vue2/02-template-bindings/answer.html)
+- [answer.js](/Users/lijiaqing/home/wwwroot/front-end-example/07-vue2/02-template-bindings/answer.js)