Potential fix for code scanning alert no. 54: Inefficient regular expression

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: tacxou

apps/api/src/core/filestorage/_dto/filestorage.dto.ts

@@ -33,7 +33,7 @@ export class FilestorageCreateDto extends CustomFieldsDto {
   @IsString()
   @IsNotEmpty()
   @ApiProperty({ type: String, default: '/' })
-  @Matches(/^\/(?:\.?[^\/\0]+\/?)+$/, { message: 'Path must be a valid path' })
+  @Matches(/^\/([^\/\0]+\/)*[^\/\0]+\/?$/, { message: 'Path must be a valid path' })
   public path: string;
 
   @IsOptional()