feat: add independent CLI launches and preserve shared video bookmarks

Sources/App/TerebiApp.swift

@@ -55,7 +55,7 @@ final class PlayerModel: ObservableObject {
     private let qualityClock: () -> Double
     private var automaticQuality = AutomaticQuality()
     private var qualityNow: Double { qualityClock() }
-    private var playbackProgress: PlaybackProgress
+    private let playbackProgress: PlaybackProgress
     private var progressURL: URL?
     private var resumePosition: Double?
     private var resumePlaying = true
@@ -1369,6 +1369,10 @@ final class AppDelegate: NSObject, NSApplicationDelegate {
         NSApp.activate(ignoringOtherApps: true)
         NSAppleEventManager.shared().setEventHandler(self, andSelector: #selector(openDocuments(_:withReplyEvent:)),
             forEventClass: AEEventClass(kCoreEventClass), andEventID: AEEventID(kAEOpenDocuments))
+        let arguments = Array(CommandLine.arguments.dropFirst())
+        if arguments.count == 2, arguments[0] == "--open-media", let url = URL(string: arguments[1]) {
+            PlayerModel.shared.open(url)
+        }
     }
 
     // Let SwiftUI create the initial window for a Finder/document launch.