chore: import upstream snapshot with attribution

Sources/ContainerCommands/Container/ManagedContainer+ListDisplayable.swift

@@ -0,0 +1,40 @@
+//===----------------------------------------------------------------------===//
+// Copyright © 2026 Apple Inc. and the container project authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//===----------------------------------------------------------------------===//
+
+import ContainerResource
+import Foundation
+
+extension ManagedContainer: ListDisplayable {
+    public static var tableHeader: [String] {
+        ["ID", "IMAGE", "OS", "ARCH", "STATE", "IP", "CPUS", "MEMORY", "STARTED"]
+    }
+
+    public var tableRow: [String] {
+        [
+            configuration.id,
+            configuration.image.reference,
+            configuration.platform.os,
+            configuration.platform.architecture,
+            status.state.rawValue,
+            status.networks.map { $0.ipv4Address.description }.joined(separator: ","),
+            "\(configuration.resources.cpus)",
+            "\(configuration.resources.memoryInBytes / (1024 * 1024)) MB",
+            status.startedDate?.ISO8601Format() ?? "",
+        ]
+    }
+
+    public var quietValue: String { configuration.id }
+}