fix: Register HeadlessJsTaskSupportModule in CoreReactPackage (#56267)

Summary:
The `HeadlessJsTaskSupportModule` was not included in any ReactPackage, causing `AppRegistry.notifyTaskFinished()` to fail silently. This meant headless JS tasks would not properly signal completion to the calling service, leaving it to linger unnecessarily.

This fix adds `HeadlessJsTaskSupportModule` to `CoreReactPackage` so that `notifyTaskFinished` and `notifyTaskRetry` methods are properly available.

## Changelog

[ANDROID] [FIXED] - Register HeadlessJsTaskSupportModule in CoreReactPackage

Pull Request resolved: #56267

Test Plan:
- [x] Android Kotlin compilation passes
- [ ] Verify headless JS tasks can properly call `notifyTaskFinished()`

Fixes #56263

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Reviewed By: fabriziocucci

Differential Revision: D98884467

Pulled By: cortinico

fbshipit-source-id: 0e1e88e722d0d353d0469a46fbddda9f11e3c81a

Author: 贾太滨

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/runtime/CoreReactPackage.kt

@@ -20,6 +20,7 @@ import com.facebook.react.module.model.ReactModuleInfoProvider
 import com.facebook.react.modules.core.DefaultHardwareBackBtnHandler
 import com.facebook.react.modules.core.DeviceEventManagerModule
 import com.facebook.react.modules.core.ExceptionsManagerModule
+import com.facebook.react.modules.core.HeadlessJsTaskSupportModule
 import com.facebook.react.modules.debug.DevMenuModule
 import com.facebook.react.modules.debug.DevSettingsModule
 import com.facebook.react.modules.debug.SourceCodeModule
@@ -38,6 +39,7 @@ import java.util.HashMap
             LogBoxModule::class,
             DeviceEventManagerModule::class,
             ExceptionsManagerModule::class,
+            HeadlessJsTaskSupportModule::class,
         ]
 )
 internal class CoreReactPackage(
@@ -57,6 +59,7 @@ internal class CoreReactPackage(
 
         LogBoxModule.NAME -> LogBoxModule(reactContext, devSupportManager)
         ExceptionsManagerModule.NAME -> ExceptionsManagerModule(devSupportManager)
+        HeadlessJsTaskSupportModule.NAME -> HeadlessJsTaskSupportModule(reactContext)
         else -> null
       }
 
@@ -96,6 +99,7 @@ internal class CoreReactPackage(
             DeviceEventManagerModule::class.java,
             LogBoxModule::class.java,
             ExceptionsManagerModule::class.java,
+            HeadlessJsTaskSupportModule::class.java,
         )
     val reactModuleInfoMap: MutableMap<String, ReactModuleInfo> = HashMap()
     for (moduleClass in moduleList) {