Initial scaffold — NASBackup iOS app

Full project scaffold: XcodeGen project.yml, Core models/protocols/errors,
SMBService (kishikawakatsumi/SMBClient), SFTPService (Citadel 0.9.2),
PhotoLibraryService, LANMonitor, BackupEngine, BackgroundTaskManager,
all feature UIs (Login, Connect, Browse, Backup, History, Settings),
Shared components and theme. Builds clean with zero errors.

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

Shared/Components/FolderRow.swift

@@ -0,0 +1,38 @@
+import SwiftUI
+
+struct FolderRow: View {
+    let item: NASItem
+    let isSelected: Bool
+    let onTap: () -> Void
+
+    var body: some View {
+        Button(action: onTap) {
+            HStack(spacing: 12) {
+                Image(systemName: item.isDirectory ? "folder.fill" : "doc.fill")
+                    .font(.system(size: 18))
+                    .foregroundColor(isSelected ? .white : (item.isDirectory ? AppTheme.blue : AppTheme.textSecondary))
+
+                Text(item.name)
+                    .font(AppTheme.bodyFont)
+                    .fontWeight(isSelected ? .semibold : .regular)
+                    .foregroundColor(isSelected ? .white : AppTheme.textPrimary)
+
+                Spacer()
+
+                if isSelected {
+                    Image(systemName: "checkmark")
+                        .font(.system(size: 13, weight: .bold))
+                        .foregroundColor(.white)
+                } else if item.isDirectory {
+                    Image(systemName: "chevron.right")
+                        .font(.system(size: 13, weight: .medium))
+                        .foregroundColor(AppTheme.textTertiary)
+                }
+            }
+            .padding(.horizontal, 16)
+            .padding(.vertical, 12)
+            .background(isSelected ? AppTheme.blue : Color.clear)
+        }
+        .buttonStyle(.plain)
+    }
+}