Fix HybridWebView NativeAOT warning path

src/Controls/src/Core/Hosting/AppHostBuilderExtensions.cs

@@ -120,9 +120,20 @@ internal static IMauiHandlersCollection AddControlsHandlers(this IMauiHandlersCo
 		handlersCollection.AddHandler<Switch, SwitchHandler>();
 		handlersCollection.AddHandler<Page, PageHandler>();
 		handlersCollection.AddHandler<WebView, WebViewHandler>();
+		const string hybridWebViewDynamicFeatures = "HybridWebView uses dynamic System.Text.Json serialization features.";
 		if (RuntimeFeature.IsHybridWebViewSupported)
 		{
-			// NOTE: not registered under NativeAOT or TrimMode=Full scenarios
+			// Keep the RequiresDynamicCode path isolated under the HybridWebView feature switch
+			// so NativeAOT/full-trim apps don't pick up HybridWebView warnings just by
+			// evaluating the default handler registration list.
+			AddHybridWebViewHandler(handlersCollection);
+		}
+#if !NETSTANDARD
+		[RequiresDynamicCode(hybridWebViewDynamicFeatures)]
+#endif
+		[RequiresUnreferencedCode(hybridWebViewDynamicFeatures)]
+		static void AddHybridWebViewHandler(IMauiHandlersCollection handlersCollection)
+		{
 			handlersCollection.AddHandler<HybridWebView, HybridWebViewHandler>();
 		}