dont forward custom tab long presses

packages/flutter_mozilla_components/android/src/main/kotlin/eu/weblibre/flutter_mozilla_components/middleware/FlutterEventMiddleware.kt

@@ -25,6 +25,7 @@ import mozilla.components.browser.state.action.LastAccessAction
 import mozilla.components.browser.state.action.ReaderAction
 import mozilla.components.browser.state.action.TabListAction
 import mozilla.components.browser.state.action.WebExtensionAction
+import mozilla.components.browser.state.selector.findCustomTab
 import mozilla.components.browser.state.state.BrowserState
 import mozilla.components.concept.engine.HitResult
 import mozilla.components.feature.addons.logger
@@ -93,6 +94,9 @@ class FlutterEventMiddleware(private val flutterEvents: GeckoStateEvents) : Midd
                 }
             }
             is ContentAction.UpdateHitResultAction -> {
+                // Skip forwarding to Flutter for custom tab sessions (PWAs, TWAs),
+                // as they handle context menus natively via ContextMenuFeature
+                if (store.state.findCustomTab(action.sessionId) == null) {
                     runOnUiThread {
                         flutterEvents.onLongPress(
                             EventSequence.next(),
@@ -110,6 +114,7 @@ class FlutterEventMiddleware(private val flutterEvents: GeckoStateEvents) : Midd
                         ) { _ -> }
                     }
                 }
+            }
             is ContentAction.AddFindResultAction -> {
                 runOnUiThread {
                     flutterEvents.onFindResults(