add api workflow (#124)

* add api workflow

* [pre-commit.ci] auto fixes from pre-commit hooks

* add news

* delete old workflow

* add workflow news

* use new api generated by new cookiecutter

* package api page build

* [pre-commit.ci] auto fixes from pre-commit hooks

* extra manual doc removed

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: stevenhua0320