Remove summary from list responses, calculate client-side

- Remove summary field from MyResidencesResponse and TaskColumnsResponse
- Update HomeScreen and ResidencesScreen to observe DataManager.totalSummary
- Load tasks when residence views appear to ensure accurate summary
- Add pull-to-refresh for tasks on ResidencesScreen
- Update iOS views to use client-side calculated summary

Summary is now calculated via refreshSummaryFromKanban() from cached
kanban data. This ensures summary is always up-to-date after CRUD
operations and when residence views are shown.

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

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

iosApp/iosApp/Helpers/WidgetActionProcessor.swift

@@ -93,10 +93,7 @@ final class WidgetActionProcessor {
                let data = success.data {
                 // Update widget with fresh data
                 WidgetDataManager.shared.saveTasks(from: data)
-                // Update summary from response (no extra API call needed)
-                if let summary = data.summary {
-                    DataManager.shared.setTotalSummary(summary: summary)
-                }
+                // Summary is calculated client-side by DataManager.setAllTasks() -> refreshSummaryFromKanban()
             }
         } catch {
             print("WidgetActionProcessor: Error refreshing tasks: \(error)")

iosApp/iosApp/Residence/ResidencesListView.swift

@@ -3,12 +3,14 @@ import ComposeApp
 
 struct ResidencesListView: View {
     @StateObject private var viewModel = ResidenceViewModel()
+    @StateObject private var taskViewModel = TaskViewModel()
     @State private var showingAddResidence = false
     @State private var showingJoinResidence = false
     @State private var showingUpgradePrompt = false
     @State private var showingSettings = false
     @StateObject private var authManager = AuthenticationManager.shared
     @StateObject private var subscriptionCache = SubscriptionCacheWrapper.shared
+    @Environment(\.scenePhase) private var scenePhase
 
     var body: some View {
         ZStack {
@@ -22,7 +24,7 @@ struct ResidencesListView: View {
                     errorMessage: viewModel.errorMessage,
                     content: { residences in
                         ResidencesContent(
-                            summary: viewModel.totalSummary ?? response.summary,
+                            summary: viewModel.totalSummary ?? TotalSummary(totalResidences: Int32(residences.count), totalTasks: 0, totalOverdue: 0, totalDueSoon: 0, totalPending: 0, tasksDueNextWeek: 0, tasksDueNextMonth: 0),
                             residences: residences
                         )
                     },
@@ -114,19 +116,30 @@ struct ResidencesListView: View {
             PostHogAnalytics.shared.screen(AnalyticsEvents.residenceScreenShown)
             if authManager.isAuthenticated {
                 viewModel.loadMyResidences()
+                // Also load tasks to populate summary stats
+                taskViewModel.loadTasks()
+            }
+        }
+        .onChange(of: scenePhase) { newPhase in
+            // Refresh data when app comes back from background
+            if newPhase == .active && authManager.isAuthenticated {
+                viewModel.loadMyResidences(forceRefresh: true)
+                taskViewModel.loadTasks(forceRefresh: true)
             }
         }
         .fullScreenCover(isPresented: $authManager.isAuthenticated.negated) {
             LoginView(onLoginSuccess: {
                 authManager.isAuthenticated = true
                 viewModel.loadMyResidences()
+                taskViewModel.loadTasks()
             })
             .interactiveDismissDisabled()
         }
         .onChange(of: authManager.isAuthenticated) { isAuth in
             if isAuth {
-                // User just logged in or registered - load their residences
+                // User just logged in or registered - load their residences and tasks
                 viewModel.loadMyResidences()
+                taskViewModel.loadTasks()
             } else {
                 // User logged out - clear data
                 viewModel.myResidences = nil

iosApp/iosApp/iOSApp.swift

@@ -79,16 +79,13 @@ struct iOSApp: App {
                         if WidgetDataManager.shared.areTasksDirty() {
                             WidgetDataManager.shared.clearDirtyFlag()
                             Task {
-                                // Refresh tasks - response includes summary for dashboard stats
+                                // Refresh tasks - summary is calculated client-side from kanban data
                                 let result = try? await APILayer.shared.getTasks(forceRefresh: true)
                                 if let success = result as? ApiResultSuccess<TaskColumnsResponse>,
                                    let data = success.data {
                                     // Update widget cache
                                     WidgetDataManager.shared.saveTasks(from: data)
-                                    // Update summary from response (no extra API call needed)
-                                    if let summary = data.summary {
-                                        DataManager.shared.setTotalSummary(summary: summary)
-                                    }
+                                    // Summary is calculated by DataManager.setAllTasks() -> refreshSummaryFromKanban()
                                 }
                             }
                         }