move deploy.operation package to operation

pkg/client/operation/operation.go

@@ -0,0 +1,23 @@
+package operation
+
+import (
+	"context"
+
+	"github.com/psviderski/uncloud/pkg/api"
+)
+
+// Operation represents a single operation in the cluster that can be executed.
+// Operations can be composed to form complex workflows (plans).
+type Operation interface {
+	// Execute performs the operation using the provided client.
+	Execute(ctx context.Context, cli Client) error
+	// Format returns a human-readable representation of the operation.
+	Format() string
+	String() string
+}
+
+// Client defines the interface required to execute cluster operations.
+type Client interface {
+	api.ContainerClient
+	api.VolumeClient
+}