Fix collect (#586)

* fix: fix datausageinfo

Signed-off-by: junxiang Mu <1948535941@qq.com>

* feat(data-usage): implement local disk snapshot aggregation for data usage statistics

Signed-off-by: junxiang Mu <1948535941@qq.com>

* feat(scanner): improve data usage collection with local scan aggregation

Signed-off-by: junxiang Mu <1948535941@qq.com>

* refactor: improve object existence check and code style

Signed-off-by: junxiang Mu <1948535941@qq.com>

---------

Signed-off-by: junxiang Mu <1948535941@qq.com>

crates/ahm/tests/integration_tests.rs

@@ -195,6 +195,7 @@ async fn test_distributed_stats_aggregation() {
         total_buckets: 5,
         last_update: std::time::SystemTime::now(),
         scan_progress: Default::default(),
+        data_usage: rustfs_common::data_usage::DataUsageInfo::default(),
     };
 
     aggregator.set_local_stats(local_stats).await;

crates/ahm/tests/lifecycle_integration_test.rs

@@ -271,7 +271,10 @@ async fn create_test_tier() {
 
 /// Test helper: Check if object exists
 async fn object_exists(ecstore: &Arc<ECStore>, bucket: &str, object: &str) -> bool {
-    ((**ecstore).get_object_info(bucket, object, &ObjectOptions::default()).await).is_ok()
+    match (**ecstore).get_object_info(bucket, object, &ObjectOptions::default()).await {
+        Ok(info) => !info.delete_marker,
+        Err(_) => false,
+    }
 }
 
 /// Test helper: Check if object exists