fix(build): 修复 mvn clean install 构建失败问题

主要修复:
- AuditLogService: 移除与 Reactor 不兼容的 @Async 注解
- AuditLogServiceTest: 配置 mock Executor 立即执行任务
- AuditLog/AuditLogTest: 添加 toString() 方法并修正断言
- FlywayMigrationScriptTest: 修复版本号排序逻辑
- ManualTableCreationTest: 指定配置类并修复 PostgreSQL 语法
- AutoConfiguration.imports: 修正包名 cn.novalon.manage -> cn.novalon.gym.manage
- pom.xml: 调整 JaCoCo 覆盖率检查策略

gym-manage-api/manage-db/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports

@@ -1 +1 @@
-cn.novalon.manage.db.config.RepositoryScanConfig
+cn.novalon.gym.manage.db.config.RepositoryScanConfig

gym-manage-api/manage-db/src/test/java/cn/novalon/gym/manage/db/config/FlywayMigrationScriptTest.java

@@ -72,7 +72,6 @@ class FlywayMigrationScriptTest {
         
         List<Path> sqlFiles = Files.list(migrationDir)
                 .filter(p -> p.toString().endsWith(".sql"))
-                .sorted()
                 .collect(Collectors.toList());
         
         List<Integer> versions = sqlFiles.stream()
@@ -81,6 +80,7 @@ class FlywayMigrationScriptTest {
                     String versionStr = filename.substring(1, filename.indexOf("__"));
                     return Integer.parseInt(versionStr);
                 })
+                .sorted()
                 .collect(Collectors.toList());
         
         for (int i = 1; i < versions.size(); i++) {