Xcode 27: compila sin warnings y migra API deprecadas de SwiftUI

- Imports de CoreData que faltaban (MemberImportVisibility) en AccountsView,
  ImportDataView, ChartsContainerView y AddSourceView.
- Aislamiento MainActor: IsolatedDefaultValues en el target de la app,
  LinearGradient @MainActor, WatchSyncMessage nonisolated, closures de
  ReviewPromptService/MonthlyCheckInStore/AppIntents.
- Warnings de valores sin usar (SnapshotGapDetector, DashboardLayoutStore,
  OnboardingView, GoalEditorView, CoreDataStack, SettingsViewModel).
- foregroundColor→foregroundStyle, cornerRadius→clipShape,
  navigationBarLeading/Trailing→topBarLeading/Trailing,
  Task.sleep(nanoseconds:)→sleep(for:), NavigationLink(isActive:)→
  navigationDestination(isPresented:).

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01F1u4K16xy7eQVtgsYNZ9Vn

PortfolioJournal/Services/AppIntentsSupport.swift

@@ -60,14 +60,14 @@ struct SourceEntity: AppEntity {
 
 struct SourceEntityQuery: EntityQuery {
     func entities(for identifiers: [UUID]) async throws -> [SourceEntity] {
-        SharedQuickUpdateStore.readMirror()
+        await MainActor.run { SharedQuickUpdateStore.readMirror() }
             .filter { identifiers.contains($0.id) }
             .map(SourceEntity.init)
     }
 
     func suggestedEntities() async throws -> [SourceEntity] {
         // Pending-first, mirroring the Share Extension's ordering.
-        SharedQuickUpdateStore.readMirror()
+        await MainActor.run { SharedQuickUpdateStore.readMirror() }
             .sorted { a, b in
                 if a.updatedThisMonth != b.updatedThisMonth { return !a.updatedThisMonth }
                 return a.name.localizedCaseInsensitiveCompare(b.name) == .orderedAscending

PortfolioJournal/Services/ChartShareService.swift

@@ -124,7 +124,7 @@ struct ChartShareCardView<Content: View>: View {
                         .font(.headline)
                     Text("\(title) · \(Self.dateLabel)")
                         .font(.subheadline)
-                        .foregroundColor(.secondary)
+                        .foregroundStyle(.secondary)
                 }
                 Spacer()
             }
@@ -138,15 +138,15 @@ struct ChartShareCardView<Content: View>: View {
                         VStack(alignment: .leading, spacing: 3) {
                             Text(stats[i].label)
                                 .font(.caption2)
-                                .foregroundColor(.secondary)
+                                .foregroundStyle(.secondary)
                             Text(stats[i].value)
                                 .font(.subheadline.weight(.semibold))
-                                .foregroundColor(stats[i].color)
+                                .foregroundStyle(stats[i].color)
                         }
                         .padding(.horizontal, 12)
                         .padding(.vertical, 8)
                         .background(Color(.systemGray6))
-                        .cornerRadius(8)
+                        .clipShape(RoundedRectangle(cornerRadius: 8))
                     }
                     Spacer()
                 }
@@ -161,7 +161,7 @@ struct ChartShareCardView<Content: View>: View {
                         .font(.footnote.weight(.medium))
                     Text(verbatim: "portfoliojournal.app")
                         .font(.footnote)
-                        .foregroundColor(.appPrimary)
+                        .foregroundStyle(Color.appPrimary)
                 }
                 Spacer()
                 if let qrCodeImage {
@@ -173,7 +173,7 @@ struct ChartShareCardView<Content: View>: View {
                             .frame(width: 64, height: 64)
                         Text(String(localized: "chart_share_scan"))
                             .font(.caption2)
-                            .foregroundColor(.secondary)
+                            .foregroundStyle(.secondary)
                     }
                 }
             }

PortfolioJournal/Services/ReviewPromptService.swift

@@ -15,18 +15,18 @@ final class ReviewPromptService {
     private let minDaysBetweenPrompts = 30
     private let userDefaults: UserDefaults
     private let dateProvider: () -> Date
-    private let reviewRequestHandler: () -> Void
+    private let reviewRequestHandler: @MainActor () -> Void
 
     private init() {
         userDefaults = .standard
         dateProvider = Date.init
-        reviewRequestHandler = ReviewPromptService.defaultReviewRequestHandler
+        reviewRequestHandler = { ReviewPromptService.defaultReviewRequestHandler() }
     }
 
     init(
         userDefaults: UserDefaults,
         dateProvider: @escaping () -> Date,
-        reviewRequestHandler: @escaping () -> Void
+        reviewRequestHandler: @escaping @MainActor () -> Void
     ) {
         self.userDefaults = userDefaults
         self.dateProvider = dateProvider
@@ -93,6 +93,7 @@ final class ReviewPromptService {
         userDefaults.set(0, forKey: checkInCountKey)
     }
 
+    @MainActor
     private static func defaultReviewRequestHandler() {
         guard let scene = UIApplication.shared.connectedScenes.first as? UIWindowScene else { return }
         if #available(iOS 18.0, *) {