fix：靠原型不齐页面

lib/features/profile/application/profile_settings_controller.dart

@@ -40,4 +40,13 @@ class ProfileSettingsController extends StateNotifier<ProfileSettings> {
   void setPriceColorMode(PriceColorMode mode) {
     state = state.copyWith(priceColorMode: mode);
   }
+
+  void setRecycleDiscount(MetalType metal, double value) {
+    state = state.copyWith(
+      recycleDiscounts: {
+        ...state.recycleDiscounts,
+        metal: value.clamp(0.7, 1.0),
+      },
+    );
+  }
 }