[FEATURE] Invoke this extension by API

[liuerfire]

Is your feature request related to a problem? Please describe.

Currently we can only use this extension through the WebUI. How about register this into the API?

Describe the solution you'd like

PoC: https://gist.github.com/liuerfire/af1f547cd4022cd104bbce07e6eef219 so that we can use this extension by invoking API /infinite_zoom/txt2video

Additional context

• https://github.com/mix1009/model-keyword/blob/main/scripts/model_keyword.py#L665