Add initial iOS project files for iso-test-app

- Created Info.plist with essential app configuration including bundle identifiers, versioning, and URL schemes.
- Added PrivacyInfo.xcprivacy to specify accessed API types and privacy tracking settings.
- Implemented SplashScreen.storyboard for the app's launch screen with a logo and background color.
- Established Expo.plist for update configurations, setting updates to check on launch.
- Created a bridging header for Swift compatibility.
- Added an empty entitlements file for future use.

ios/isotestapp/AppDelegate.swift

@@ -0,0 +1,70 @@
+import Expo
+import React
+import ReactAppDependencyProvider
+
+@UIApplicationMain
+public class AppDelegate: ExpoAppDelegate {
+  var window: UIWindow?
+
+  var reactNativeDelegate: ExpoReactNativeFactoryDelegate?
+  var reactNativeFactory: RCTReactNativeFactory?
+
+  public override func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil
+  ) -> Bool {
+    let delegate = ReactNativeDelegate()
+    let factory = ExpoReactNativeFactory(delegate: delegate)
+    delegate.dependencyProvider = RCTAppDependencyProvider()
+
+    reactNativeDelegate = delegate
+    reactNativeFactory = factory
+    bindReactNativeFactory(factory)
+
+#if os(iOS) || os(tvOS)
+    window = UIWindow(frame: UIScreen.main.bounds)
+    factory.startReactNative(
+      withModuleName: "main",
+      in: window,
+      launchOptions: launchOptions)
+#endif
+
+    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+  }
+
+  // Linking API
+  public override func application(
+    _ app: UIApplication,
+    open url: URL,
+    options: [UIApplication.OpenURLOptionsKey: Any] = [:]
+  ) -> Bool {
+    return super.application(app, open: url, options: options) || RCTLinkingManager.application(app, open: url, options: options)
+  }
+
+  // Universal Links
+  public override func application(
+    _ application: UIApplication,
+    continue userActivity: NSUserActivity,
+    restorationHandler: @escaping ([UIUserActivityRestoring]?) -> Void
+  ) -> Bool {
+    let result = RCTLinkingManager.application(application, continue: userActivity, restorationHandler: restorationHandler)
+    return super.application(application, continue: userActivity, restorationHandler: restorationHandler) || result
+  }
+}
+
+class ReactNativeDelegate: ExpoReactNativeFactoryDelegate {
+  // Extension point for config-plugins
+
+  override func sourceURL(for bridge: RCTBridge) -> URL? {
+    // needed to return the correct URL for expo-dev-client.
+    bridge.bundleURL ?? bundleURL()
+  }
+
+  override func bundleURL() -> URL? {
+#if DEBUG
+    return RCTBundleURLProvider.sharedSettings().jsBundleURL(forBundleRoot: ".expo/.virtual-metro-entry")
+#else
+    return Bundle.main.url(forResource: "main", withExtension: "jsbundle")
+#endif
+  }
+}