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/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -1,35 +1,116 @@
 {
-  "images" : [
+  "images": [
     {
-      "idiom" : "universal",
-      "platform" : "ios",
-      "size" : "1024x1024"
+      "filename": "icon-20@2x.png",
+      "idiom": "iphone",
+      "size": "20x20",
+      "scale": "2x"
     },
     {
-      "appearances" : [
-        {
-          "appearance" : "luminosity",
-          "value" : "dark"
-        }
-      ],
-      "idiom" : "universal",
-      "platform" : "ios",
-      "size" : "1024x1024"
+      "filename": "icon-20@3x.png",
+      "idiom": "iphone",
+      "size": "20x20",
+      "scale": "3x"
     },
     {
-      "appearances" : [
-        {
-          "appearance" : "luminosity",
-          "value" : "tinted"
-        }
-      ],
-      "idiom" : "universal",
-      "platform" : "ios",
-      "size" : "1024x1024"
+      "filename": "icon-29@2x.png",
+      "idiom": "iphone",
+      "size": "29x29",
+      "scale": "2x"
+    },
+    {
+      "filename": "icon-29@3x.png",
+      "idiom": "iphone",
+      "size": "29x29",
+      "scale": "3x"
+    },
+    {
+      "filename": "icon-40@2x.png",
+      "idiom": "iphone",
+      "size": "40x40",
+      "scale": "2x"
+    },
+    {
+      "filename": "icon-40@3x.png",
+      "idiom": "iphone",
+      "size": "40x40",
+      "scale": "3x"
+    },
+    {
+      "filename": "icon-60@2x.png",
+      "idiom": "iphone",
+      "size": "60x60",
+      "scale": "2x"
+    },
+    {
+      "filename": "icon-60@3x.png",
+      "idiom": "iphone",
+      "size": "60x60",
+      "scale": "3x"
+    },
+    {
+      "filename": "icon-20.png",
+      "idiom": "ipad",
+      "size": "20x20",
+      "scale": "1x"
+    },
+    {
+      "filename": "icon-20@2x.png",
+      "idiom": "ipad",
+      "size": "20x20",
+      "scale": "2x"
+    },
+    {
+      "filename": "icon-29.png",
+      "idiom": "ipad",
+      "size": "29x29",
+      "scale": "1x"
+    },
+    {
+      "filename": "icon-29@2x.png",
+      "idiom": "ipad",
+      "size": "29x29",
+      "scale": "2x"
+    },
+    {
+      "filename": "icon-40.png",
+      "idiom": "ipad",
+      "size": "40x40",
+      "scale": "1x"
+    },
+    {
+      "filename": "icon-40@2x.png",
+      "idiom": "ipad",
+      "size": "40x40",
+      "scale": "2x"
+    },
+    {
+      "filename": "icon-76.png",
+      "idiom": "ipad",
+      "size": "76x76",
+      "scale": "1x"
+    },
+    {
+      "filename": "icon-76@2x.png",
+      "idiom": "ipad",
+      "size": "76x76",
+      "scale": "2x"
+    },
+    {
+      "filename": "icon-83.5@2x.png",
+      "idiom": "ipad",
+      "size": "83.5x83.5",
+      "scale": "2x"
+    },
+    {
+      "filename": "icon-1024.png",
+      "idiom": "ios-marketing",
+      "size": "1024x1024",
+      "scale": "1x"
     }
   ],
-  "info" : {
-    "author" : "xcode",
-    "version" : 1
+  "info": {
+    "author": "xcode",
+    "version": 1
   }
-}
+}