Created the Commanding package target in the Features package for controlling the recording flow from Live Activities.

Packages/Features/Sources/Commanding/Services/RecordingCommander.swift

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+import Foundation
+
+/// The bridge that carries ``RecordingCommand``s from outside the feature's UI into the recording flow.
+///
+/// The commander exists because the senders of the commands — the App Intents behind a Live Activity's buttons — are instantiated
+/// by the system, out of reach of the feature's dependency injection: they send through the process-wide ``shared`` instance, and the
+/// feature's model listens to ``commands``, translating every received command into the button press it mirrors. Unit tests create
+/// commanders of their own and inject them into the model, leaving the shared instance untouched.
+@MainActor
+public final class RecordingCommander {
+
+    // MARK: Constants
+
+    /// The process-wide commander the recording flow listens to by default.
+    public static let shared = RecordingCommander()
+
+    // MARK: Properties
+
+    /// The stream of commands sent through the commander.
+    public let commands: AsyncStream<RecordingCommand>
+
+    /// The continuation that feeds ``commands``.
+    private let continuation: AsyncStream<RecordingCommand>.Continuation
+
+    // MARK: Initializers
+
+    /// Creates a commander with an empty stream of commands.
+    public init() {
+        (commands, continuation) = AsyncStream.makeStream(of: RecordingCommand.self)
+    }
+
+    // MARK: Methods
+
+    /// Sends a command to the recording flow listening to the commander.
+    ///
+    /// - Parameter command: The command to send.
+    public func send(
+        _ command: RecordingCommand
+    ) {
+        continuation.yield(command)
+    }
+
+}