refactor(pigx-common-datasource): 简化动态数据源配置逻辑

- 移除 DEFAULT_QUERY_DS_SQL 常量定义
- 直接使用传入的 queryDsSql 参数，简化条件判断逻辑
- 优化构造函数参数初始化方式

pigx-common/pigx-common-datasource/src/main/java/com/pig4cloud/pigx/common/datasource/config/JdbcDynamicDataSourceProvider.java

@@ -47,8 +47,6 @@ public class JdbcDynamicDataSourceProvider extends AbstractJdbcDataSourceProvide
 
     private static final String SQL_LOG_FILTER = "sqlLogFilter";
 
-    private static final String DEFAULT_QUERY_DS_SQL = "select * from gen_datasource_conf where del_flag = ?";
-
     private final String queryDsSql;
 
     private final StringEncryptor stringEncryptor;
@@ -59,7 +57,7 @@ public class JdbcDynamicDataSourceProvider extends AbstractJdbcDataSourceProvide
         super(defaultDataSourceCreator, masterDataSource.getDriverClassName(), masterDataSource.getUrl(),
                 masterDataSource.getUsername(), masterDataSource.getPassword());
         this.stringEncryptor = stringEncryptor;
-        this.queryDsSql = queryDsSql != null ? queryDsSql : DEFAULT_QUERY_DS_SQL;
+        this.queryDsSql = queryDsSql;
     }
 
     /**