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>

project.yml

@@ -0,0 +1,76 @@
+name: NASBackup
+options:
+  bundleIdPrefix: com.albert
+  deploymentTarget:
+    iOS: "16.0"
+  xcodeVersion: "15.0"
+  createIntermediateGroups: true
+
+settings:
+  base:
+    PRODUCT_BUNDLE_IDENTIFIER: com.albert.nasbackup
+    DEVELOPMENT_TEAM: ""
+    SWIFT_VERSION: "5.9"
+    IPHONEOS_DEPLOYMENT_TARGET: "16.0"
+    CODE_SIGN_STYLE: Automatic
+    TARGETED_DEVICE_FAMILY: "1,2"
+    CODE_SIGN_ENTITLEMENTS: NASBackup.entitlements
+
+packages:
+  SMBClient:
+    url: https://github.com/kishikawakatsumi/SMBClient
+    from: "0.3.0"
+  Citadel:
+    url: https://github.com/orlandos-nl/Citadel
+    exactVersion: "0.9.2"
+
+targets:
+  NASBackup:
+    type: application
+    platform: iOS
+    sources:
+      - App
+      - Core
+      - Services
+      - Features
+      - Shared
+    resources:
+      - Assets.xcassets
+    info:
+      path: App/Info.plist
+      properties:
+        CFBundleDisplayName: NASBackup
+        UILaunchStoryboardName: ""
+        UISupportedInterfaceOrientations:
+          - UIInterfaceOrientationPortrait
+          - UIInterfaceOrientationLandscapeLeft
+          - UIInterfaceOrientationLandscapeRight
+        UISupportedInterfaceOrientations~ipad:
+          - UIInterfaceOrientationPortrait
+          - UIInterfaceOrientationPortraitUpsideDown
+          - UIInterfaceOrientationLandscapeLeft
+          - UIInterfaceOrientationLandscapeRight
+        UIApplicationSceneManifest:
+          UIApplicationSupportsMultipleScenes: true
+          UISceneConfigurations:
+            UIWindowSceneSessionRoleApplication:
+              - UISceneConfigurationName: Default Configuration
+                UISceneDelegateClassName: $(PRODUCT_MODULE_NAME).SceneDelegate
+        BGTaskSchedulerPermittedIdentifiers:
+          - com.albert.nasbackup.backup
+          - com.albert.nasbackup.refresh
+        UIBackgroundModes:
+          - fetch
+          - processing
+        NSPhotoLibraryUsageDescription: NASBackup needs access to your photos to back them up to your NAS.
+        NSLocationWhenInUseUsageDescription: Used to detect your home Wi-Fi network name for automatic backup.
+        NSFaceIDUsageDescription: Sign in quickly with Face ID.
+    entitlements:
+      path: NASBackup.entitlements
+      properties:
+        com.apple.developer.networking.wifi-info: true
+    dependencies:
+      - package: SMBClient
+        product: SMBClient
+      - package: Citadel
+        product: Citadel