Add app icon asset, screenshot exporter, and misc updates

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Shared/Views/SettingsView/SettingsView.swift

@@ -27,6 +27,8 @@ struct SettingsContentView: View {
     @State private var watchExportPath: URL?
     @State private var isExportingInsights = false
     @State private var insightsExportPath: URL?
+    @State private var isGeneratingScreenshots = false
+    @State private var sharingExportPath: URL?
     @State private var isDeletingHealthKitData = false
     @State private var healthKitDeleteResult: String?
     @StateObject private var healthService = HealthService.shared
@@ -73,6 +75,7 @@ struct SettingsContentView: View {
                 exportVotingLayoutsButton
                 exportWatchViewsButton
                 exportInsightsButton
+                generateAndExportButton
                 deleteHealthKitDataButton
 
                 clearDataButton
@@ -654,6 +657,67 @@ struct SettingsContentView: View {
         .cornerRadius(Constants.viewsCornerRaidus, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
     }
 
+    private var generateAndExportButton: some View {
+        ZStack {
+            theme.currentTheme.secondaryBGColor
+            Button {
+                isGeneratingScreenshots = true
+                Task {
+                    DataController.shared.populate2YearsData()
+                    sharingExportPath = await SharingScreenshotExporter.exportAllSharingScreenshots()
+                    isGeneratingScreenshots = false
+                    if let path = sharingExportPath {
+                        print("📸 Sharing screenshots exported to: \(path.path)")
+                        openInFilesApp(path)
+                    }
+                }
+            } label: {
+                HStack(spacing: 12) {
+                    if isGeneratingScreenshots {
+                        ProgressView()
+                            .frame(width: 32)
+                    } else {
+                        Image(systemName: "photo.on.rectangle.angled")
+                            .font(.title2)
+                            .foregroundStyle(
+                                LinearGradient(
+                                    colors: [.green, .blue],
+                                    startPoint: .leading,
+                                    endPoint: .trailing
+                                )
+                            )
+                            .frame(width: 32)
+                    }
+
+                    VStack(alignment: .leading, spacing: 2) {
+                        Text("Generate & Export Sharing")
+                            .foregroundColor(textColor)
+
+                        if let path = sharingExportPath {
+                            Text("Saved to Documents/SharingExports")
+                                .font(.caption)
+                                .foregroundColor(.green)
+                        } else {
+                            Text("Fill 2 years data + export PNGs")
+                                .font(.caption)
+                                .foregroundStyle(.secondary)
+                        }
+                    }
+
+                    Spacer()
+
+                    Image(systemName: "arrow.down.doc.fill")
+                        .font(.caption)
+                        .foregroundStyle(.tertiary)
+                }
+                .padding()
+            }
+            .disabled(isGeneratingScreenshots)
+        }
+        .fixedSize(horizontal: false, vertical: true)
+        .cornerRadius(Constants.viewsCornerRaidus, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
+    }
+
     private var deleteHealthKitDataButton: some View {
         ZStack {
             theme.currentTheme.secondaryBGColor