fix(remote): 上传直接写入用户选择的目录而非uploads文件夹

remote/src/routes/files.js

@@ -29,14 +29,15 @@ router.post('/upload', upload.single('file'), (req, res) => {
     const filename = req.file.originalname;
     
     let targetDir;
+    
     if (remotePath) {
-      targetDir = path.join(fileService.uploadDir, remotePath);
+      if (remotePath.match(/^[A-Z]:\\?$/i)) {
+        targetDir = remotePath;
+      } else {
+        targetDir = remotePath;
+      }
     } else {
-      targetDir = fileService.uploadDir;
-    }
-
-    if (!targetDir.startsWith(fileService.uploadDir)) {
-      return res.status(403).json({ error: 'Invalid path' });
+      targetDir = 'C:\\';
     }
 
     if (!fs.existsSync(targetDir)) {