Merge pull request 'Fix lyrics wiped on schema reset' (#8) from fix/lyrics-data-loss into main

SavedSong was in the local container alongside reference data, so it
got deleted whenever localStoreResetVersion was bumped. Move it to the
cloud container (CloudKit-synced) so saved songs persist across schema
changes. Update lyrics views to use cloudModelContextProvider.

Closes #4

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Conjuga/Conjuga/ConjugaApp.swift

@@ -10,7 +10,7 @@ private enum CloudPreviewContainer {
         let configuration = ModelConfiguration(isStoredInMemoryOnly: true)
         return try! ModelContainer(
             for: ReviewCard.self, CourseReviewCard.self, UserProgress.self,
-                 TestResult.self, DailyLog.self,
+                 TestResult.self, DailyLog.self, SavedSong.self,
             configurations: configuration
         )
     }()
@@ -67,13 +67,13 @@ struct ConjugaApp: App {
                 "cloud",
                 schema: Schema([
                     ReviewCard.self, CourseReviewCard.self, UserProgress.self,
-                    TestResult.self, DailyLog.self,
+                    TestResult.self, DailyLog.self, SavedSong.self,
                 ]),
                 cloudKitDatabase: .private("iCloud.com.conjuga.app")
             )
             cloudContainer = try ModelContainer(
                 for: ReviewCard.self, CourseReviewCard.self, UserProgress.self,
-                     TestResult.self, DailyLog.self,
+                     TestResult.self, DailyLog.self, SavedSong.self,
                 configurations: cloudConfig
             )
         } catch {
@@ -200,7 +200,6 @@ struct ConjugaApp: App {
             schema: Schema([
                 Verb.self, VerbForm.self, IrregularSpan.self,
                 TenseGuide.self, CourseDeck.self, VocabCard.self,
-                SavedSong.self,
             ]),
             url: url,
             cloudKitDatabase: .none
@@ -208,7 +207,6 @@ struct ConjugaApp: App {
         return try ModelContainer(
             for: Verb.self, VerbForm.self, IrregularSpan.self,
                  TenseGuide.self, CourseDeck.self, VocabCard.self,
-                 SavedSong.self,
             configurations: localConfig
         )
     }
@@ -237,7 +235,7 @@ struct ConjugaApp: App {
     /// Clears accumulated stale schema metadata from previous container configurations.
     /// Bump the version number to force another reset if the schema changes again.
     private static func performOneTimeLocalStoreResetIfNeeded(at url: URL) {
-        let resetVersion = 2  // bump: widget schema moved to SharedModels
+        let resetVersion = 3  // bump: SavedSong moved to cloud container
         let key = "localStoreResetVersion"
         let defaults = UserDefaults.standard
 

Conjuga/Conjuga/Views/Practice/Lyrics/LyricsConfirmationView.swift

@@ -7,9 +7,11 @@ struct LyricsConfirmationView: View {
     let result: LyricsSearchResult
     let onSave: () -> Void
 
-    @Environment(\.modelContext) private var modelContext
+    @Environment(\.cloudModelContextProvider) private var cloudModelContextProvider
     @Environment(\.dismiss) private var dismiss
 
+    private var cloudModelContext: ModelContext { cloudModelContextProvider() }
+
     @State private var translatedEN = ""
     @State private var isTranslating = true
     @State private var translationError = false
@@ -207,8 +209,8 @@ struct LyricsConfirmationView: View {
             albumArtURL: result.albumArtURL ?? "",
             appleMusicURL: result.appleMusicURL ?? ""
         )
-        modelContext.insert(song)
-        try? modelContext.save()
+        cloudModelContext.insert(song)
+        try? cloudModelContext.save()
         onSave()
     }
 }

Conjuga/Conjuga/Views/Practice/Lyrics/LyricsLibraryView.swift

@@ -3,9 +3,12 @@ import SharedModels
 import SwiftData
 
 struct LyricsLibraryView: View {
-    @Query(sort: \SavedSong.savedDate, order: .reverse) private var songs: [SavedSong]
+    @Environment(\.cloudModelContextProvider) private var cloudModelContextProvider
+    @State private var songs: [SavedSong] = []
     @State private var showingSearch = false
 
+    private var cloudModelContext: ModelContext { cloudModelContextProvider() }
+
     var body: some View {
         Group {
             if songs.isEmpty {
@@ -42,18 +45,26 @@ struct LyricsLibraryView: View {
             NavigationStack {
                 LyricsSearchView {
                     showingSearch = false
+                    loadSongs()
                 }
             }
         }
+        .onAppear(perform: loadSongs)
     }
 
-    @Environment(\.modelContext) private var modelContext
+    private func loadSongs() {
+        let descriptor = FetchDescriptor<SavedSong>(
+            sortBy: [SortDescriptor(\SavedSong.savedDate, order: .reverse)]
+        )
+        songs = (try? cloudModelContext.fetch(descriptor)) ?? []
+    }
 
     private func deleteSongs(at offsets: IndexSet) {
         for index in offsets {
-            modelContext.delete(songs[index])
+            cloudModelContext.delete(songs[index])
         }
-        try? modelContext.save()
+        try? cloudModelContext.save()
+        loadSongs()
     }
 }