Use the existing CLI; do not write a separate upload flow. The account name is a local session alias; before publishing, first check sau baijiahao upload-video --help。
sau baijiahao login --account creator
sau baijiahao check --account creator
sau baijiahao upload-video --account creator --file videos/demo.mp4 --title "标题" --desc "简介" --tags 百家号,测试
Currently only videos are supported; text-image posts and scheduled publishing are not supported. Optional --thumbnail to specify the cover,--collection to specify an existing collection. First complete the Baidu account login and save the session; when a QR code appears during login, show the QR code image to the user.
Before publishing, verify the account, material, title, copy, and tags. Success is indicated only by the command and the submission evidence provided by the platform for this submission; if it times out or the status is unclear, first check the backend—do not resend directly.