Switch to gRPC client in Swift app

Apple/UI/TunnelStatusView.swift

@@ -0,0 +1,37 @@
+import SwiftUI
+
+struct TunnelStatusView: View {
+    @Environment(\.tunnel)
+    var tunnel: any Tunnel
+
+    var body: some View {
+        Text(tunnel.status.description)
+    }
+}
+
+extension TunnelStatus: CustomStringConvertible {
+    public var description: String {
+        switch self {
+        case .unknown:
+            "Unknown"
+        case .permissionRequired:
+            "Permission Required"
+        case .disconnected:
+            "Disconnected"
+        case .disabled:
+            "Disabled"
+        case .connecting:
+            "Connecting…"
+        case .connected:
+            "Connected"
+        case .disconnecting:
+            "Disconnecting…"
+        case .reasserting:
+            "Reasserting…"
+        case .invalid:
+            "Invalid"
+        case .configurationReadWriteFailed:
+            "System Error"
+        }
+    }
+}