feat: Spring Boot 学习脚手架 v2.0

- 新增 IoC 容器学习模块
- 新增 AOP 切面编程学习模块
- 新增 MyBatis 集成学习模块
- 新增事务管理学习模块
- 新增用户/产品/订单 CRUD
- 新增 7 个交互式学习页面
- 集成性能监控切面

target/classes/application.properties

@@ -0,0 +1,22 @@
+spring.application.name=springboot-scaffold
+server.port=8082
+
+# H2 Database
+spring.h2.console.enabled=true
+spring.datasource.url=jdbc:h2:file:~/h2/springboot_scaffold
+spring.datasource.driverClassName=org.h2.Driver
+spring.datasource.username=sa
+spring.datasource.password=
+
+# JPA
+spring.jpa.hibernate.ddl-auto=update
+spring.jpa.show-sql=true
+spring.jpa.properties.hibernate.format_sql=true
+
+# MyBatis
+mybatis.configuration.map-underscore-to-camel-case=true
+mybatis.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl
+
+# Logging
+logging.level.com.example.scaffold=DEBUG
+logging.level.org.springframework.transaction.interceptor=TRACE