chore: Throw an error when the New Architecture is not available (#6913)

## Summary

This PR adds check for the New Architecture and web.

<img
src="https://github.com/user-attachments/assets/212e051b-3cb3-4657-8e37-9b0677634c6d"
width="300" />

packages/react-native-reanimated/src/ReanimatedModule/NativeReanimated.ts

@@ -12,7 +12,7 @@ import type {
 } from '../commonTypes';
 import { checkCppVersion } from '../platform-specific/checkCppVersion';
 import { jsVersion } from '../platform-specific/jsVersion';
-import { isFabric } from '../PlatformChecker';
+import { isFabric, isWeb } from '../PlatformChecker';
 import type React from 'react';
 import { getShadowNodeWrapperFromRef } from '../fabricUtils';
 import { ReanimatedTurboModule } from '../specs';
@@ -25,6 +25,8 @@ import type {
   NormalizedSingleCSSAnimationSettings,
 } from '../css/platform/native';
 
+const IS_WEB = isWeb();
+
 export function createNativeReanimatedModule(): IReanimatedModule {
   return new NativeReanimatedModule();
 }
@@ -65,6 +67,11 @@ class NativeReanimatedModule implements IReanimatedModule {
 See https://docs.swmansion.com/react-native-reanimated/docs/guides/troubleshooting#native-part-of-reanimated-doesnt-seem-to-be-initialized for more details.`
       );
     }
+    if (!isFabric() && !IS_WEB) {
+      throw new ReanimatedError(
+        'Reanimated 4 supports only the React Native New Architecture and web.'
+      );
+    }
     if (__DEV__) {
       checkCppVersion();
     }