feat(remote): 新增文件传输专用端口配置

- 添加 fileTransferPort 字段到 RemoteDevice 类型
- 新增 frp 穿透配置: 3003 -> 8083
- 文件传输功能改用专用端口，避免与远程桌面端口共用
- 配置对话框新增文件传输端口设置

src/modules/remote/RemotePage.tsx

@@ -40,6 +40,7 @@ const createEmptyDevice = (): RemoteDevice => ({
   desktopPort: 3000,
   gitPort: 3001,
   openCodePort: 3002,
+  fileTransferPort: 3003,
 })
 
 export const RemotePage: React.FC = () => {
@@ -88,6 +89,7 @@ export const RemotePage: React.FC = () => {
           openCodePort: device.openCodePort || 3002,
           desktopPort: device.desktopPort || 3000,
           gitPort: device.gitPort || 3001,
+          fileTransferPort: device.fileTransferPort || 3003,
         }))
         setConfig(configWithDevices)
         if (configWithDevices.devices.length > 0 && !selectedDeviceId) {
@@ -198,7 +200,7 @@ export const RemotePage: React.FC = () => {
       setShowConfig(true)
       return
     }
-    let url = `file-transfer-panel?host=${encodeURIComponent(selectedConfig.serverHost)}&port=${selectedConfig.desktopPort}&device=${encodeURIComponent(selectedConfig.deviceName || '')}`
+    let url = `file-transfer-panel?host=${encodeURIComponent(selectedConfig.serverHost)}&port=${selectedConfig.fileTransferPort}&device=${encodeURIComponent(selectedConfig.deviceName || '')}`
     if (selectedConfig.password) {
       url += `&password=${encodeURIComponent(selectedConfig.password)}`
     }

src/modules/remote/components/ConfigDialog.tsx

@@ -168,6 +168,19 @@ export const ConfigDialog: React.FC<ConfigDialogProps> = ({
             />
           </div>
 
+          <div>
+            <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
+              文件传输端口
+            </label>
+            <input
+              type="number"
+              value={formData.fileTransferPort}
+              onChange={(e) => handleChange('fileTransferPort', parseInt(e.target.value) || 3003)}
+              placeholder="默认: 3003"
+              className="w-full px-3 py-2 bg-gray-50 dark:bg-gray-700 border border-gray-300 dark:border-gray-600 rounded-lg text-gray-900 dark:text-gray-100 placeholder-gray-400 dark:placeholder-gray-500 focus:outline-none focus:ring-2 focus:ring-gray-900 dark:focus:ring-gray-100 focus:border-transparent transition-colors"
+            />
+          </div>
+
           <div>
             <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
               访问密码

src/modules/remote/types.ts

@@ -15,6 +15,7 @@ export interface RemoteDevice {
   desktopPort: number
   gitPort: number
   openCodePort: number
+  fileTransferPort: number
   password?: string
 }