Method saveAttachment

src/main/attachmentHandler.ts:26–49

* 保存附件到本地 * @param fileId 文件ID * @param fileName 文件名 * @param base64Content base64编码的文件内容 * @param pageId 页面ID（可选） * @param messageId 消息ID（可选） * @returns 相对路径

(
    fileId: string,
    fileName: string,
    base64Content: string,
    pageId?: string,
    messageId?: string
  )

   * @returns 相对路径
   */
  async saveAttachment(
    fileId: string,
    fileName: string,
    base64Content: string,
    pageId?: string,
    messageId?: string
  ): Promise<{ success: boolean; localPath?: string; error?: string }> {
    try {
      const relativePath = await saveAttachmentFile({
        fileId,
        fileName,
        base64Content,
        pageId,
        messageId
      })
      return { success: true, localPath: relativePath }
    } catch (error) {
      console.error('保存附件失败:', error)
      return {
        success: false,
        error: error instanceof Error ? error.message : '保存附件失败'
      }
    }
  }

  /**
   * 读取附件内容