jeecg-module-system org.jeecgframework.boot 3.7.2 4.0.0 jeecg-system-start org.jeecgframework.boot jeecg-system-biz ${jeecgboot.version} org.jeecgframework.boot jeecg-module-demo ${jeecgboot.version} org.jeecgframework.boot jeecg-module-miniapp ${jeecgboot.version} org.flywaydb flyway-core org.springframework.boot spring-boot-maven-plugin 2.7.15 true contract