Migrate from Core Data to SwiftData

- Replace Core Data with SwiftData for iOS 18+
- Create MoodEntryModel as @Model class replacing MoodEntry entity
- Create SharedModelContainer for App Group container sharing
- Create DataController with CRUD extensions replacing PersistenceController
- Update all views and view models to use MoodEntryModel
- Update widget extension to use SwiftData
- Remove old Core Data files (Persistence*.swift, .xcdatamodeld)
- Add EntryType enum with all entry type cases
- Fix widget label truncation with proper spacing and text scaling

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Shared/Views/SharingTemplates/AllMoodsTotalTemplate.swift

@@ -24,24 +24,25 @@ struct AllMoodsTotalTemplate: View, SharingTemplate {
 
     @StateObject private var shareImage = StupidAssShareObservableObject()
     private var entries = [MoodMetrics]()
+
+    @MainActor
     init(isPreview: Bool, startDate: Date, endDate: Date, fakeData: Bool) {
         self.isPreview = isPreview
         self.startDate = startDate
         self.endDate = endDate
-        
-        var moodEntries: [MoodEntry]?
-        
+
+        var moodEntries: [MoodEntryModel]?
+
         if fakeData {
-            moodEntries = PersistenceController.shared.randomEntries(count: 10)
+            moodEntries = DataController.shared.randomEntries(count: 10)
         } else {
-            
-            moodEntries = PersistenceController.shared.getData(startDate:startDate,
-                                                               endDate: endDate,
-                                                               includedDays: [1,2,3,4,5,6,7])
+            moodEntries = DataController.shared.getData(startDate:startDate,
+                                                        endDate: endDate,
+                                                        includedDays: [1,2,3,4,5,6,7])
         }
-        
+
         totalEntryCount = moodEntries?.count ?? 0
-        
+
         if let moodEntries = moodEntries {
             entries = Random.createTotalPerc(fromEntries: moodEntries)
             entries = entries.sorted(by: {