fix: 修复添加模型切换模式时，初始化空值导致的判断问题

web/src/pages/Setting/Operation/ModelSettingsVisualEditor.js

@@ -75,7 +75,7 @@ export default function ModelSettingsVisualEditor(props) {
           output.ModelPrice[model.name] = parseFloat(model.price)
         } else {
           if (model.ratio !== '') output.ModelRatio[model.name] = parseFloat(model.ratio);
-          if (model.completionRatio != '') output.CompletionRatio[model.name] = parseFloat(model.completionRatio);
+          if (model.completionRatio !== '') output.CompletionRatio[model.name] = parseFloat(model.completionRatio);
         }
       });
 
@@ -203,11 +203,6 @@ export default function ModelSettingsVisualEditor(props) {
       showError('模型名称已存在');
       return;
     }
-    // 不允许同时添加固定价格和倍率
-    if (values.price !== '' && (values.ratio !== '' || values.completionRatio !== '')) {
-      showError('固定价格和倍率不能同时存在');
-      return;
-    }
     setModels(prev => [{
       name: values.name,
       price: values.price || '',