修复: OSS收藏打开+连接指示器根目录+字段映射+侧边栏重构+文件监听+首屏优化

internal/filesystem/service.go

@@ -268,6 +268,11 @@ func (s *FileSystemService) DeletePathWithContext(ctx context.Context, path stri
 
 // ListDir 列出目录内容
 func (s *FileSystemService) ListDir(path string) ([]map[string]interface{}, error) {
+	// 根路径：返回 Windows 盘符列表
+	if path == "/" || path == "\\" {
+		return s.listDrives()
+	}
+
 	// 路径验证
 	if err := s.validatePath(path); err != nil {
 		return nil, err
@@ -308,6 +313,25 @@ func (s *FileSystemService) ListDir(path string) ([]map[string]interface{}, erro
 	return result, nil
 }
 
+// listDrives 列出 Windows 可用盘符
+func (s *FileSystemService) listDrives() ([]map[string]interface{}, error) {
+	result := make([]map[string]interface{}, 0)
+	for _, drive := range "ABCDEFGHIJKLMNOPQRSTUVWXYZ" {
+		path := string(drive) + ":/"
+		_, err := os.Stat(path)
+		if err != nil {
+			continue
+		}
+		result = append(result, map[string]interface{}{
+			"name":   string(drive) + ":",
+			"path":   path,
+			"is_dir": true,
+			"size":   int64(0),
+		})
+	}
+	return result, nil
+}
+
 // CreateDir 创建目录，返回创建的目录信息
 func (s *FileSystemService) CreateDir(path string) (*FileOperationResult, error) {
 	if err := s.validatePath(path); err != nil {