quitar AdMob, Firebase Analytics y ATT de la app

"Portfolio Journal sin AdMob ni Google: es la única forma de que 'sin
rastreo' sea verdad, y el ingreso por anuncios es despreciable" — la ficha
de App Store prometía "sin analíticas, sin rastreo, sin venta de datos"
mientras la app enlazaba GoogleMobileAds y FirebaseAnalytics, pedía permiso
de rastreo al arrancar y mandaba el importe del saldo a GA4 en el evento
snapshot_added.

SDKs fuera del proyecto (project.pbxproj): paquetes firebase-ios-sdk y
swift-package-manager-google-mobile-ads, productos FirebaseCore,
FirebaseAnalytics, GoogleMobileAds y FirebaseCrashlytics, más la fase de
build "Upload dSYMs to Crashlytics". Package.resolved se queda sin nada que
resolver. Con la fase de script fuera, ENABLE_USER_SCRIPT_SANDBOXING vuelve
a YES en el target app (estaba en NO solo por Crashlytics).

Código borrado:
- Services/AdMobService.swift entero — con él se van el flujo UMP,
  BannerAdView, BannerAdCoordinator y la llamada a
  ATTrackingManager.requestTrackingAuthorization().
- Services/FirebaseService.swift entero y sus 40 llamadas. Se borra en vez
  de dejarse como capa vacía: una clase llamada FirebaseService en una app
  que presume de no llevar Firebase es exactamente la clase de detalle que
  vuelve a colarse en una auditoría dentro de un año.
- El banner y su safeAreaInset en ContentView (bannerInsetView): las cinco
  pestañas ya no reservan 50 pt al pie.
- La entrada "Manage Ad Consent" de Ajustes y el @EnvironmentObject
  adMobService de SettingsView, ContentView y PortfolioJournalApp.
- AppConstants: bloque AdMob, bannerAdHeight, adConsentObtained,
  Features.enableAnalytics.
- SettingsViewModel.toggleAnalytics y analyticsEnabled — el flag no estaba
  conectado a nada ni tenía control en la interfaz. El atributo
  AppSettings.enableAnalytics se queda en CoreData con un comentario: no
  vale la pena una migración y un deploy de esquema CloudKit por borrarlo.
- Premium ya no promete "sin anuncios": fuera PremiumFeature.noAds, la
  entrada de IAPService.premiumFeatures y paywallBenefits, y las claves
  feature_no_ads / paywall_benefit_noads de los 7 idiomas. No se toca ni el
  precio ni el producto.

Info.plist: fuera NSUserTrackingUsageDescription, GADApplicationIdentifier,
GADDelayAppMeasurementInit y los 65 SKAdNetworkItems. Borrados también
GoogleService-Info.plist y los scripts Scripts/analyze_ga4.py y
Scripts/analyze_crashlytics.py, que ya no tienen de dónde leer.

Closes #50

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01F1u4K16xy7eQVtgsYNZ9Vn

PortfolioJournal/ViewModels/ChartsViewModel.swift

@@ -405,8 +405,6 @@ class ChartsViewModel: ObservableObject {
             category: selectedCategory,
             timeRange: selectedTimeRange
         )
-
-        FirebaseService.shared.logScreenView(screenName: "Charts")
     }
 
     /// Selection is NEVER blocked — premium charts select normally and the chart
@@ -423,10 +421,6 @@ class ChartsViewModel: ObservableObject {
         // observer: makes selection deterministic and lets re-tapping a tile
         // act as a retry if a previous update was dropped.
         updateChartData(chartType: chartType, category: selectedCategory, timeRange: selectedTimeRange)
-        FirebaseService.shared.logChartViewed(
-            chartType: chartType.rawValue,
-            isPremium: chartType.isPremium
-        )
     }
 
     func availableTimeRanges(for chartType: ChartType) -> [TimeRange] {

PortfolioJournal/ViewModels/SettingsViewModel.swift

@@ -11,7 +11,6 @@ class SettingsViewModel: ObservableObject {
     @Published var isFamilyShared = false
     @Published var notificationsEnabled = false
     @Published var defaultNotificationTime = Date()
-    @Published var analyticsEnabled = true
     @Published var currencyCode = AppSettings.getOrCreate(in: CoreDataStack.shared.viewContext).currency
     @Published var inputMode: InputMode = .simple
 
@@ -93,7 +92,6 @@ class SettingsViewModel: ObservableObject {
         let settings = AppSettings.getOrCreate(in: context)
 
         defaultNotificationTime = settings.defaultNotificationTime ?? Date()
-        analyticsEnabled = settings.enableAnalytics
         currencyCode = settings.currency
         inputMode = InputMode(rawValue: settings.inputMode) ?? .simple
         backupRetentionCount = loadBackupRetention()
@@ -107,8 +105,6 @@ class SettingsViewModel: ObservableObject {
 
         // Load statistics directly from database to avoid async race conditions
         loadStatistics()
-
-        FirebaseService.shared.logScreenView(screenName: "Settings")
     }
 
     private func loadStatistics() {
@@ -131,7 +127,6 @@ class SettingsViewModel: ObservableObject {
 
     func upgradeToPremium() {
         showingPaywall = true
-        FirebaseService.shared.logPaywallShown(trigger: "settings_upgrade")
     }
 
     func restorePurchases() async {
@@ -141,10 +136,8 @@ class SettingsViewModel: ObservableObject {
 
         if isPremium {
             successMessage = "Purchases restored successfully!"
-            FirebaseService.shared.logRestorePurchases(success: true)
         } else {
             errorMessage = "No purchases to restore"
-            FirebaseService.shared.logRestorePurchases(success: false)
         }
     }
 
@@ -191,7 +184,6 @@ class SettingsViewModel: ObservableObject {
     func exportData(format: ExportService.ExportFormat) {
         guard freemiumValidator.canExport() else {
             showingPaywall = true
-            FirebaseService.shared.logPaywallShown(trigger: "export")
             return
         }
 
@@ -242,13 +234,11 @@ class SettingsViewModel: ObservableObject {
                     DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
                         self.shareItem = ShareItem(url: tempURL)
                     }
-                    FirebaseService.shared.logExportAttempt(format: format.rawValue, success: true)
                 }
             } catch {
                 await MainActor.run {
                     isExporting = false
                     errorMessage = "Export failed: \(error.localizedDescription)"
-                    FirebaseService.shared.logExportAttempt(format: format.rawValue, success: false)
                 }
             }
         }
@@ -272,19 +262,6 @@ class SettingsViewModel: ObservableObject {
         freemiumValidator.canExport()
     }
 
-    // MARK: - Analytics
-
-    func toggleAnalytics(_ enabled: Bool) {
-        analyticsEnabled = enabled
-
-        let context = CoreDataStack.shared.viewContext
-        let settings = AppSettings.getOrCreate(in: context)
-        settings.enableAnalytics = enabled
-        CoreDataStack.shared.save()
-
-        // Note: In production, you'd also update Firebase Analytics consent
-    }
-
     // MARK: - Currency
 
     func updateCurrency(_ code: String) {
@@ -555,7 +532,6 @@ class SettingsViewModel: ObservableObject {
         guard isPremium else {
             backupsEnabled = false
             UserDefaults.standard.set(false, forKey: backupsEnabledKey)
-            FirebaseService.shared.logPaywallShown(trigger: "backups")
             showingPaywall = true
             return
         }

PortfolioJournal/ViewModels/SourceDetailViewModel.swift

@@ -87,8 +87,6 @@ class SourceDetailViewModel: ObservableObject {
         isLoading = true
         refreshData()
         isLoading = false
-
-        FirebaseService.shared.logScreenView(screenName: "SourceDetail")
     }
 
     func refreshData() {
@@ -167,9 +165,6 @@ class SourceDetailViewModel: ObservableObject {
         // Reschedule notification
         NotificationService.shared.scheduleReminder(for: source)
 
-        // Log analytics
-        FirebaseService.shared.logSnapshotAdded(sourceName: source.name, value: value)
-
         showingAddSnapshot = false
         refreshData()
     }
@@ -216,9 +211,6 @@ class SourceDetailViewModel: ObservableObject {
         // Cancel any pending notifications for this source
         NotificationService.shared.cancelReminder(for: source)
 
-        // Log analytics before deletion
-        FirebaseService.shared.logSourceDeleted(categoryName: source.category?.name ?? "Uncategorized")
-
         // Delete the source using the existing repository
         sourceRepository.deleteSource(source)
     }
@@ -226,14 +218,9 @@ class SourceDetailViewModel: ObservableObject {
     // MARK: - Predictions
 
     func showPredictions() {
-        if freemiumValidator.canViewPredictions() {
-            // Already loaded, just navigate
-            FirebaseService.shared.logPredictionViewed(
-                algorithm: predictionResult?.algorithm.rawValue ?? "unknown"
-            )
-        } else {
+        // Predictions are already loaded; free users get the paywall instead.
+        if !freemiumValidator.canViewPredictions() {
             showingPaywall = true
-            FirebaseService.shared.logPaywallShown(trigger: "predictions")
         }
     }
 

PortfolioJournal/ViewModels/SourceListViewModel.swift

@@ -76,8 +76,6 @@ class SourceListViewModel: ObservableObject {
         sourceRepository.fetchSources()
         categoryRepository.fetchCategories()
         isLoading = false
-
-        FirebaseService.shared.logScreenView(screenName: "SourceList")
     }
 
     private func filterAndSortSources(_ allSources: [InvestmentSource]) {
@@ -115,7 +113,6 @@ class SourceListViewModel: ObservableObject {
             showingAddSource = true
         } else {
             showingPaywall = true
-            FirebaseService.shared.logPaywallShown(trigger: "source_limit")
         }
     }
 
@@ -137,26 +134,15 @@ class SourceListViewModel: ObservableObject {
         // Schedule notification
         NotificationService.shared.scheduleReminder(for: source)
 
-        // Log analytics
-        FirebaseService.shared.logSourceAdded(
-            categoryName: category.name,
-            sourceCount: sourceRepository.sourceCount
-        )
-
         showingAddSource = false
     }
 
     func deleteSource(_ source: InvestmentSource) {
-        let categoryName = source.category?.name ?? "Unknown"
-
         // Cancel notifications
         NotificationService.shared.cancelReminder(for: source)
 
         // Delete source
         sourceRepository.deleteSource(source)
-
-        // Log analytics
-        FirebaseService.shared.logSourceDeleted(categoryName: categoryName)
     }
 
     func deleteSource(at offsets: IndexSet) {