refactor(ecstore): isolate local object rename commit (#7166)

* fix(ecstore): drain durable control-plane write tails

* fix(ecstore): retain PUT staging after incomplete rollback

* fix(ecstore): drain backfill checkpoint before confirmation

* refactor(ecstore): isolate local object rename commit

* refactor(ecstore): remove moved quota fence import

* fix(ecstore): retain per-disk rename rollback outcomes

* fix(ecstore): retain indeterminate rename recovery evidence

* test(ecstore): mark rollback fixtures as inline data

* test(ecstore): match sealed context fixture map type

* test(ecstore): match sealed context fixture map type

* fix(ecstore): preserve known preflight rename rejections

* test(ecstore): cover observed rename outer failures

* test(ecstore): count decommission faults across retry restarts

crates/ecstore/src/services/tier/tier_mutation_intent.rs

@@ -460,6 +460,7 @@ where
         data,
         &ObjectOptions {
             max_parity: true,
+            write_completion: crate::object_api::WriteCompletion::TailDrained,
             http_preconditions: Some(HTTPPreconditions {
                 if_none_match: Some("*".to_string()),
                 ..Default::default()
@@ -556,6 +557,7 @@ where
         data,
         &ObjectOptions {
             max_parity: true,
+            write_completion: crate::object_api::WriteCompletion::TailDrained,
             http_preconditions: Some(HTTPPreconditions {
                 if_match: Some(current_etag.to_string()),
                 ..Default::default()

crates/ecstore/src/services/tier/tier_probe_intent.rs

@@ -494,6 +494,7 @@ where
         data,
         &ObjectOptions {
             max_parity: true,
+            write_completion: crate::object_api::WriteCompletion::TailDrained,
             http_preconditions: Some(HTTPPreconditions {
                 if_none_match: Some("*".to_string()),
                 ..Default::default()
@@ -549,6 +550,7 @@ where
         data,
         &ObjectOptions {
             max_parity: true,
+            write_completion: crate::object_api::WriteCompletion::TailDrained,
             http_preconditions: Some(HTTPPreconditions {
                 if_match: Some(current.record_etag.clone()),
                 ..Default::default()