chore: import upstream snapshot with attribution

Sources/ContainerResource/Container/ContainerStatus.swift

@@ -0,0 +1,34 @@
+//===----------------------------------------------------------------------===//
+// 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 Foundation
+
+/// The runtime status of a container. Identity-free: the container's id lives
+/// on its ``ContainerConfiguration``.
+public struct ContainerStatus: Codable, Sendable {
+    /// The state-machine value for the container (running, stopped, …).
+    public let state: RuntimeStatus
+    /// Network attachments provided to the container.
+    public let networks: [Attachment]
+    /// When the container was started, if it has been.
+    public let startedDate: Date?
+
+    public init(state: RuntimeStatus, networks: [Attachment], startedDate: Date? = nil) {
+        self.state = state
+        self.networks = networks
+        self.startedDate = startedDate
+    }
+}