Stabilize iOS/watchOS/tvOS apps and add cross-platform audit remediation

iphone/Werkout_ios/subview/CompletedWorkoutsView.swift

@@ -10,6 +10,7 @@ import SwiftUI
 struct CompletedWorkoutsView: View {
     @State var completedWorkouts: [CompletedWorkout]?
     @State var showCompletedWorkouts: Bool = false
+    @State private var loadError: String?
 
     var body: some View {
         VStack(alignment: .leading) {
@@ -41,7 +42,11 @@ struct CompletedWorkoutsView: View {
                 }
                 
             } else {
-                Text("loading completed workouts")
+                if let loadError = loadError {
+                    Text(loadError)
+                } else {
+                    Text("loading completed workouts")
+                }
             }
         }
         .onAppear{
@@ -58,9 +63,14 @@ struct CompletedWorkoutsView: View {
         CompletedWorkoutFetchable().fetch(completion: { result in
             switch result {
             case .success(let model):
-                completedWorkouts = model
+                DispatchQueue.main.async {
+                    completedWorkouts = model
+                    loadError = nil
+                }
             case .failure(let failure):
-                fatalError(failure.localizedDescription)
+                DispatchQueue.main.async {
+                    loadError = "Unable to load workout history: \(failure.localizedDescription)"
+                }
             }
         })
     }