Fix crash al abrir Import Data en Mac Catalyst (@EnvironmentObject no heredado en sheets)

ImportDataView usa @EnvironmentObject (iapService/accountStore/tabSelection).
En Mac (Designed for iPad) las sheets no heredan el environment vía
PresentationHostingController → EnvironmentObject.error() / SIGTRAP al abrir
Import Data (ImportDataView.swift:247, shouldShowAccountSelection). Reinyectados
los 3 objects en las sheets de Settings, Dashboard y Onboarding.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01L2p3gUZRNWW388rWFRjiU7

PortfolioJournal/Views/Dashboard/DashboardView.swift

@@ -6,6 +6,7 @@ import TipKit
 struct DashboardView: View {
     @EnvironmentObject var iapService: IAPService
     @EnvironmentObject var accountStore: AccountStore
+    @EnvironmentObject var tabSelection: TabSelectionStore
     @StateObject private var viewModel: DashboardViewModel
     @StateObject private var goalsViewModel = GoalsViewModel()
     @State private var showingImport = false
@@ -110,7 +111,12 @@ struct DashboardView: View {
                 goalsViewModel.refresh()
             }
             .sheet(isPresented: $showingImport) {
+                // Re-inject env objects: sheets don't inherit @EnvironmentObject on
+                // Mac Catalyst (Designed for iPad) → ImportDataView crashed on open.
                 ImportDataView()
+                    .environmentObject(iapService)
+                    .environmentObject(accountStore)
+                    .environmentObject(tabSelection)
             }
             .sheet(isPresented: $showingAddSource) {
                 AddSourceView()

PortfolioJournal/Views/Onboarding/OnboardingView.swift

@@ -13,6 +13,12 @@ struct OnboardingView: View {
     @State private var showingImportSheet = false
     @State private var showingAddSource = false
 
+    // Forwarded into the ImportDataView sheet — sheets don't inherit
+    // @EnvironmentObject on Mac Catalyst, which crashed the import screen.
+    @EnvironmentObject private var iapService: IAPService
+    @EnvironmentObject private var accountStore: AccountStore
+    @EnvironmentObject private var tabSelection: TabSelectionStore
+
     private let pages: [OnboardingPage] = [
         OnboardingPage(
             icon: "chart.line.uptrend.xyaxis",
@@ -123,6 +129,9 @@ struct OnboardingView: View {
         }
         .sheet(isPresented: $showingImportSheet) {
             ImportDataView(importContext: .onboarding)
+                .environmentObject(iapService)
+                .environmentObject(accountStore)
+                .environmentObject(tabSelection)
         }
         .sheet(isPresented: $showingAddSource) {
             AddSourceView()

PortfolioJournal/Views/Settings/SettingsView.swift

@@ -6,6 +6,8 @@ struct SettingsView: View {
     private let iapService: IAPService
     @StateObject private var viewModel: SettingsViewModel
     @EnvironmentObject private var adMobService: AdMobService
+    @EnvironmentObject private var accountStore: AccountStore
+    @EnvironmentObject private var tabSelection: TabSelectionStore
     @AppStorage("showForecast") private var showForecast = true
     @AppStorage("cloudSyncEnabled") private var cloudSyncEnabled = false
     @AppStorage("faceIdEnabled") private var faceIdEnabled = false
@@ -86,7 +88,11 @@ struct SettingsView: View {
                 ActivityView(activityItems: [shareItem.url])
             }
             .sheet(isPresented: $viewModel.showingImportSheet) {
+                // Sheets don't inherit @EnvironmentObject on Mac Catalyst → re-inject.
                 ImportDataView()
+                    .environmentObject(iapService)
+                    .environmentObject(accountStore)
+                    .environmentObject(tabSelection)
             }
             .confirmationDialog(
                 "Reset All Data",