feat(scenes): log every node config change, --load-scene launch argument

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

App/Sources/Coordinator.swift

@@ -41,6 +41,12 @@ final class Coordinator {
         outputs.applyLaunchRoutes()
         audio.applyLaunchRoutes()
         applyLoginItemArgument()
+        if let index = ProcessInfo.processInfo.arguments.firstIndex(of: "--load-scene"),
+           index + 1 < ProcessInfo.processInfo.arguments.count {
+            let name = ProcessInfo.processInfo.arguments[index + 1]
+            if let scene = store.scenes.first(where: { $0.name == name }) { loadScene(scene) }
+            else { Log.remote.error("--load-scene: no scene named \(name, privacy: .public)") }
+        }
 
         statusTimer = Timer.scheduledTimer(withTimeInterval: 1, repeats: true) { [weak self] _ in
             MainActor.assumeIsolated { self?.sendStatus() }
@@ -81,6 +87,7 @@ final class Coordinator {
 
     /// Shows a source on a node's screen.
     func show(_ assignment: VideoAssignment, onNode name: String) {
+        Log.remote.info("UI: show \(assignment.source.ndiName, privacy: .public) on \(name, privacy: .public)/\(assignment.screen.name, privacy: .public)")
         var config = desiredConfig(forNode: name)
         config.video.removeAll { $0.screen == assignment.screen }
         config.video.append(assignment)
@@ -90,6 +97,7 @@ final class Coordinator {
     }
 
     func stop(_ screen: ScreenRef, onNode name: String) {
+        Log.remote.info("UI: stop \(name, privacy: .public)/\(screen.name, privacy: .public)")
         var config = desiredConfig(forNode: name)
         config.video.removeAll { $0.screen == screen }
         live.nodes[name] = config
@@ -105,7 +113,7 @@ final class Coordinator {
     private func nodeConnected(_ node: NodeBrowser.Node) {
         if let desired = live.nodes[node.name] {
             node.send(.apply(desired))
-            Log.ndi.info("Sent configuration to \(node.name, privacy: .public)")
+            Log.remote.info("Sent configuration to \(node.name, privacy: .public): \(desired.video.count) video")
         } else {
             adoptWhenStatusArrives(node)
         }
@@ -117,6 +125,7 @@ final class Coordinator {
                 try? await Task.sleep(for: .seconds(1))
                 guard let self, live.nodes[node.name] == nil else { return }
                 if let config = node.status?.config {
+                    Log.remote.info("Adopted configuration of \(node.name, privacy: .public): \(config.video.count) video")
                     live.nodes[node.name] = config
                     store.saveLiveState(live)
                     return
@@ -128,6 +137,7 @@ final class Coordinator {
     // MARK: - Node: commands from the control
 
     private func handle(_ message: RemoteMessage) {
+        Log.remote.info("Command: \(String(describing: message).prefix(200), privacy: .public)")
         switch message {
         case .apply(let config):
             outputs.apply(config.video)
@@ -206,6 +216,7 @@ final class Coordinator {
     }
 
     private func markModified() {
+        Log.remote.debug("Live state saved: local \(self.live.local.video.count) video, nodes \(self.live.nodes.mapValues(\.video.count), privacy: .public)")
         if live.sceneID != nil { live.modified = true }
         store.saveLiveState(live)
     }

App/Sources/MusubiApp.swift

@@ -38,4 +38,5 @@ final class AppDelegate: NSObject, NSApplicationDelegate {
 enum Log {
     static let ndi = Logger(subsystem: "studio.zielke.musubi", category: "ndi")
     static let audio = Logger(subsystem: "studio.zielke.musubi", category: "audio")
+    static let remote = Logger(subsystem: "studio.zielke.musubi", category: "scene")
 }