feat(remote): add NetworkStatus model for View-layer network state

Music/Remote/NetworkStatus.swift

@@ -0,0 +1,17 @@
+import Foundation
+
+struct NetworkStatus {
+    enum Mode {
+        case hosting(connectedRemote: String?)
+        case remote(hostName: String)
+    }
+
+    var mode: Mode
+    var onDisconnect: (() -> Void)?
+    var onRefreshLibrary: (() -> Void)?
+
+    var isRemoteMode: Bool {
+        if case .remote = mode { return true }
+        return false
+    }
+}