Add CoreData-based workout tracking app with iOS and watchOS targets

- Migrate from SwiftData to CoreData with CloudKit sync
- Add core models: Split, Exercise, Workout, WorkoutLog
- Implement tab-based UI: Workout Logs, Splits, Settings
- Add SF Symbols picker for split icons
- Add exercise picker filtered by split with exclusion of added exercises
- Integrate IndieAbout for settings/about section
- Add Yams for YAML exercise definition parsing
- Include starter exercise libraries (bodyweight, Planet Fitness)
- Add Date extensions for formatting (formattedTime, isSameDay)
- Format workout date ranges to show time-only for same-day end dates
- Add build number update script
- Add app icons

Workouts Watch App/WorkoutsApp.swift

@@ -1,20 +1,24 @@
 //
 // WorkoutsApp.swift
-// Workouts
+// Workouts Watch App
 //
-// Created by rzen on 8/13/25 at 11:10 AM.
+// Created by rzen on 8/13/25 at 11:10 AM.
 //
 // Copyright 2025 Rouslan Zenetl. All Rights Reserved.
 //
 
 
 import SwiftUI
+import CoreData
 
 @main
-struct Workouts_Watch_AppApp: App {
+struct WorkoutsWatchApp: App {
+    let persistenceController = PersistenceController.shared
+
     var body: some Scene {
         WindowGroup {
             ContentView()
+                .environment(\.managedObjectContext, persistenceController.viewContext)
         }
     }
 }