feat: 重定向后的模型视为已有的模型，附带特殊提示

web/src/components/table/channels/modals/EditChannelModal.jsx

@@ -190,6 +190,30 @@ const EditChannelModal = (props) => {
   const [keyMode, setKeyMode] = useState('append'); // 密钥模式：replace（覆盖）或 append（追加）
   const [isEnterpriseAccount, setIsEnterpriseAccount] = useState(false); // 是否为企业账户
   const [doubaoApiEditUnlocked, setDoubaoApiEditUnlocked] = useState(false); // 豆包渠道自定义 API 地址隐藏入口
+  const redirectModelList = useMemo(() => {
+    const mapping = inputs.model_mapping;
+    if (typeof mapping !== 'string') return [];
+    const trimmed = mapping.trim();
+    if (!trimmed) return [];
+    try {
+      const parsed = JSON.parse(trimmed);
+      if (
+        !parsed ||
+        typeof parsed !== 'object' ||
+        Array.isArray(parsed)
+      ) {
+        return [];
+      }
+      const values = Object.values(parsed)
+        .map((value) =>
+          typeof value === 'string' ? value.trim() : undefined,
+        )
+        .filter((value) => value);
+      return Array.from(new Set(values));
+    } catch (error) {
+      return [];
+    }
+  }, [inputs.model_mapping]);
 
   // 密钥显示状态
   const [keyDisplayState, setKeyDisplayState] = useState({
@@ -3044,6 +3068,7 @@ const EditChannelModal = (props) => {
         visible={modelModalVisible}
         models={fetchedModels}
         selected={inputs.models}
+        redirectModels={redirectModelList}
         onConfirm={(selectedModels) => {
           handleInputChange('models', selectedModels);
           showSuccess(t('模型列表已更新'));