Method writeJsonFile

src/app/repo/opfs_repo.ts:60–66

(filename: string, data: unknown, dir?: FileSystemDirectoryHandle)

  // 写入 JSON 文件
  protected async writeJsonFile(filename: string, data: unknown, dir?: FileSystemDirectoryHandle): Promise<void> {
    const targetDir = dir || (await this.getDir());
    const fileHandle = await targetDir.getFileHandle(filename, { create: true });
    const writable = await fileHandle.createWritable();
    await writable.write(JSON.stringify(data));
    await writable.close();
  }

  // 删除文件，不存在时忽略
  protected async deleteFile(filename: string, dir?: FileSystemDirectoryHandle): Promise<void> {