Add WatchConnectivity for bidirectional iOS-Watch sync

Implement real-time sync between iOS and Apple Watch apps using
WatchConnectivity framework. This replaces reliance on CloudKit
which doesn't work reliably in simulators.

- Add WatchConnectivityManager to both iOS and Watch targets
- Sync workouts, splits, exercises, and logs between devices
- Update iOS views to trigger sync on data changes
- Add onChange observer to ExerciseView for live progress updates
- Configure App Groups for shared container storage
- Add Watch app views: WorkoutLogsView, WorkoutLogListView, ExerciseProgressView

Workouts Watch App/Views/WorkoutLogsView.swift

@@ -0,0 +1,99 @@
+//
+// WorkoutLogsView.swift
+// Workouts Watch App
+//
+// Copyright 2025 Rouslan Zenetl. All Rights Reserved.
+//
+
+import SwiftUI
+import CoreData
+
+struct WorkoutLogsView: View {
+    @Environment(\.managedObjectContext) private var viewContext
+    @EnvironmentObject var connectivityManager: WatchConnectivityManager
+
+    @FetchRequest(
+        sortDescriptors: [NSSortDescriptor(keyPath: \Workout.start, ascending: false)],
+        animation: .default
+    )
+    private var workouts: FetchedResults<Workout>
+
+    var body: some View {
+        NavigationStack {
+            List {
+                ForEach(workouts, id: \.objectID) { workout in
+                    NavigationLink(destination: WorkoutLogListView(workout: workout)) {
+                        WorkoutRow(workout: workout)
+                    }
+                }
+            }
+            .overlay {
+                if workouts.isEmpty {
+                    ContentUnavailableView(
+                        "No Workouts",
+                        systemImage: "list.bullet.clipboard",
+                        description: Text("Tap sync or start a workout from iPhone.")
+                    )
+                }
+            }
+            .navigationTitle("Workouts")
+            .toolbar {
+                ToolbarItem(placement: .topBarTrailing) {
+                    Button {
+                        connectivityManager.requestSync()
+                    } label: {
+                        Image(systemName: "arrow.triangle.2.circlepath")
+                    }
+                }
+            }
+        }
+    }
+}
+
+// MARK: - Workout Row
+
+struct WorkoutRow: View {
+    @ObservedObject var workout: Workout
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 4) {
+            Text(workout.split?.name ?? Split.unnamed)
+                .font(.headline)
+                .lineLimit(1)
+
+            HStack {
+                Text(workout.start.formatDate())
+                    .font(.caption2)
+                    .foregroundColor(.secondary)
+
+                Spacer()
+
+                statusIndicator
+            }
+        }
+        .padding(.vertical, 4)
+    }
+
+    @ViewBuilder
+    private var statusIndicator: some View {
+        switch workout.status {
+        case .completed:
+            Image(systemName: "checkmark.circle.fill")
+                .foregroundColor(.green)
+        case .inProgress:
+            Image(systemName: "circle.dotted")
+                .foregroundColor(.orange)
+        case .notStarted:
+            Image(systemName: "circle")
+                .foregroundColor(.secondary)
+        case .skipped:
+            Image(systemName: "xmark.circle")
+                .foregroundColor(.secondary)
+        }
+    }
+}
+
+#Preview {
+    WorkoutLogsView()
+        .environment(\.managedObjectContext, PersistenceController.preview.viewContext)
+}