✨ feat(ui): add incremental-add feedback & translations for model lists (#1218)

Front-end enhancements around “Add custom models”:

• EditChannel.js / EditTagModal.js
  – Skip models that already exist instead of blocking the action.
  – Collect actually inserted items and display:
      • Success toast: “Added N models: model1, model2 …”
      • Info toast when no new model detected.
  – Keeps UX smooth while preserving deduplication logic.

• i18n
  – en.json: added keys
      • "已新增 {{count}} 个模型：{{list}}"
      • "未发现新增模型"
  – Fixed a broken JSON string containing smart quotes to maintain valid syntax.

Result:
Users can bulk-paste model names; duplicates are silently ignored and the UI clearly lists what was incrementally appended. All messages are fully internationalised.

Closes #1218

web/src/pages/Channel/EditChannel.js

@@ -385,7 +385,7 @@ const EditChannel = (props) => {
 
     let localModels = [...inputs.models];
     let localModelOptions = [...modelOptions];
-    let hasError = false;
+    const addedModels = [];
 
     modelArray.forEach((model) => {
       if (model && !localModels.includes(model)) {
@@ -395,17 +395,24 @@ const EditChannel = (props) => {
           text: model,
           value: model,
         });
-      } else if (model) {
-        showError(t('某些模型已存在！'));
-        hasError = true;
+        addedModels.push(model);
       }
     });
 
-    if (hasError) return;
-
     setModelOptions(localModelOptions);
     setCustomModel('');
     handleInputChange('models', localModels);
+
+    if (addedModels.length > 0) {
+      showSuccess(
+        t('已新增 {{count}} 个模型：{{list}}', {
+          count: addedModels.length,
+          list: addedModels.join(', '),
+        })
+      );
+    } else {
+      showInfo(t('未发现新增模型'));
+    }
   };
 
   return (

web/src/pages/Channel/EditTagModal.js

@@ -229,7 +229,7 @@ const EditTagModal = (props) => {
 
     let localModels = [...inputs.models];
     let localModelOptions = [...modelOptions];
-    let hasError = false;
+    const addedModels = [];
 
     modelArray.forEach((model) => {
       // 检查模型是否已存在，且模型名称非空
@@ -241,18 +241,25 @@ const EditTagModal = (props) => {
           text: model,
           value: model,
         });
-      } else if (model) {
-        showError('某些模型已存在！');
-        hasError = true;
+        addedModels.push(model);
       }
     });
 
-    if (hasError) return; // 如果有错误则终止操作
-
     // 更新状态值
     setModelOptions(localModelOptions);
     setCustomModel('');
     handleInputChange('models', localModels);
+
+    if (addedModels.length > 0) {
+      showSuccess(
+        t('已新增 {{count}} 个模型：{{list}}', {
+          count: addedModels.length,
+          list: addedModels.join(', '),
+        })
+      );
+    } else {
+      showInfo(t('未发现新增模型'));
+    }
   };
 
   return (