implemented a central haptic feedback system with configurable levels (off, reduced, full), added a Haptics facade providing semantic feedback methods, integrated haptic cues across navigation, settings toggles, and async action results, and updated version to 1.1.0+54

lib/widget/async_actions/async_mixin.dart

@@ -66,9 +66,11 @@ class _AsyncMixinState extends State<_AsyncMixin> {
     );
     if (!mounted) return;
     if (success) {
+      Haptics.success();
       widget.onSuccess?.call();
-    } else if (widget.onError != null && _controller.error != null) {
-      widget.onError!(_controller.error!);
+    } else if (_controller.error != null) {
+      Haptics.error();
+      widget.onError?.call(_controller.error!);
     }
   }