refactor: update AppDelegate to use bundleURL method and clean up ReactAppProvider

fix: add .harness to .gitignore and update jest.config.js for consistency

Author: YogendraShelke

.gitignore

@@ -90,3 +90,6 @@ lib/
 
 # Fastlane.swift runner binary
 **/fastlane/FastlaneRunner
+
+# Harness logs/crash reports
+example/.harness

example/.harness/manifest.js

@@ -7,7 +7,7 @@ class AppDelegate: ReactAppProvider {
 
     override func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
         setUpProvider()
-        guard let bundleUrl = reactNativeDelegate?.bundleURL() else {
+        guard let bundleUrl = bundleURL() else {
             let message = "No script URL provided. Make sure the metro packager is running or you have embedded a JS bundle in your application bundle."
             fatalError(message)
         }
@@ -30,4 +30,12 @@ class AppDelegate: ReactAppProvider {
         ReactNative.shared.start()
         return super.application(application, didFinishLaunchingWithOptions: launchOptions)
     }
+    
+    func bundleURL() -> URL? {
+        #if DEBUG
+            RCTBundleURLProvider.sharedSettings().jsBundleURL(forBundleRoot: "index")
+        #else
+            Bundle.main.url(forResource: "main", withExtension: "jsbundle")
+        #endif
+    }
 }

example/ios/MendixNativeExample/AppDelegate.swift

@@ -1,4 +1,5 @@
 module.exports = {
+  forceExit: true,
   projects: [
     {
       displayName: 'react-native-harness',

example/jest.config.js

@@ -67,7 +67,6 @@ open class ReactAppProvider: UIResponder, UIApplicationDelegate {
         return window?.rootViewController?.view
     }
 
-    // Check if React Native app is active and running
     public static func isReactAppActive() -> Bool {
         return ReactHostHelper().isReactAppActive()
     }