feat(release): store sequencing metadata in Release for rollback support

- Add SequencingMetadata struct (enabled, strategy, batches) to Release
- Persist subchart DAG batch order during ordered install
- Enables rollback/uninstall to reconstruct original deployment order

pkg/action/install.go

@@ -571,6 +571,13 @@ func (i *Install) performOrderedInstall(rel *release.Release, toBeAdopted kube.R
 		return i.createAndWaitResources(toBeAdopted, resources)
 	}
 
+	// Store sequencing metadata in the release for rollback/uninstall
+	rel.Sequencing = &release.SequencingMetadata{
+		Enabled:  true,
+		Strategy: string(kube.OrderedStrategy),
+		Batches:  batches,
+	}
+
 	// Split the manifest by subchart
 	subchartManifests := SplitManifestsBySubchart(rel.Manifest, rel.Chart.Metadata.Name)
 

pkg/release/v1/release.go

@@ -51,6 +51,22 @@ type Release struct {
 	// ApplyMethod stores whether server-side or client-side apply was used for the release
 	// Unset (empty string) should be treated as the default of client-side apply
 	ApplyMethod string `json:"apply_method,omitempty"` // "ssa" | "csa"
+	// Sequencing stores metadata about ordered deployment used for this release.
+	// Nil when sequencing was not enabled (--wait=ordered not used).
+	// Used during rollback/uninstall to respect original deployment order.
+	Sequencing *SequencingMetadata `json:"sequencing,omitempty"`
+}
+
+// SequencingMetadata stores the subchart deployment order used during install/upgrade.
+// This allows rollback and uninstall operations to reconstruct the dependency graph.
+type SequencingMetadata struct {
+	// Enabled indicates that ordered sequencing was used for this release.
+	Enabled bool `json:"enabled"`
+	// Strategy is the wait strategy used (e.g., "ordered").
+	Strategy string `json:"strategy,omitempty"`
+	// Batches records the ordered deployment batches.
+	// Each batch is a list of subchart names deployed together.
+	Batches [][]string `json:"batches,omitempty"`
 }
 
 // SetStatus is a helper for setting the status on a release.