feat: Add native module and package for custom functionality

android/app/src/main/java/com/lynkeduppro/MainApplication.kt

@@ -10,13 +10,15 @@ import com.facebook.react.defaults.DefaultReactHost.getDefaultReactHost
 class MainApplication : Application(), ReactApplication {
 
   override val reactHost: ReactHost by lazy {
+
+    val packages = PackageList(this).packages.toMutableList()
+
+    // ✅ Add your custom package HERE (Kotlin syntax)
+    packages.add(NativeModulesPackage())
+
     getDefaultReactHost(
       context = applicationContext,
-      packageList =
-        PackageList(this).packages.apply {
-          // Packages that cannot be autolinked yet can be added manually here, for example:
-          // add(MyReactNativePackage())
-        },
+      packageList = packages,
     )
   }
 

android/app/src/main/java/com/lynkeduppro/MyNativeModule.kt

@@ -0,0 +1,19 @@
+package com.lynkeduppro
+
+import com.facebook.react.bridge.ReactApplicationContext
+import com.facebook.react.bridge.ReactContextBaseJavaModule
+import com.facebook.react.bridge.ReactMethod
+import com.facebook.react.bridge.Promise
+
+class MyNativeModule(private val reactContext: ReactApplicationContext)
+    : ReactContextBaseJavaModule(reactContext) {
+
+    override fun getName(): String {
+        return "MyNativeModule"   // JS module name
+    }
+
+    @ReactMethod
+    fun greet(name: String, promise: Promise) {
+        promise.resolve("Hello $name from Android(Kotlin)!")
+    }
+}

android/app/src/main/java/com/lynkeduppro/MyNativePackage.kt

@@ -0,0 +1,19 @@
+package com.lynkeduppro
+
+import com.facebook.react.ReactPackage
+import com.facebook.react.bridge.NativeModule
+import com.facebook.react.bridge.ReactApplicationContext
+import com.facebook.react.uimanager.ViewManager
+
+class NativeModulesPackage : ReactPackage {
+
+    override fun createNativeModules(reactContext: ReactApplicationContext): List<NativeModule> {
+        return listOf(
+            MyNativeModule(reactContext)
+        )
+    }
+
+    override fun createViewManagers(reactContext: ReactApplicationContext): List<ViewManager<*, *>> {
+        return emptyList()
+    }
+}