[feature] cron or exact time scheduler / or trigger check via webhook

[MG-Sky]

Version and OS
newest docker image

Is your feature request related to a problem? Please describe.
i have an automations that run at exact time, so i need to run www site check at exact time only once a day. current setup doesn't meet my needs

Describe the solution you'd like
to have an option to:

1. provide exact time the check will run or
2. invoke check using webhook (for instance from home assistant)

Describe the use-case and give concrete real-world examples
i check some sites in the morning and want to run some automations now ots.more or less random run time..

[dgtlmoon]

duplicate #164

[dgtlmoon]

invoke check using webhook (for instance from home assistant)

Actually this is a great idea and very simple to implement, can be added to the current API https://changedetection.io/docs/api_v1/index.html

[MG-Sky]

thanks so that could solve a problem with scheduled check.
if api available then i will pause check (to not run job) and then trigger change from external source at exact time.

[dgtlmoon]

https://changedetection.io/docs/api_v1/index.html#api-Watch-Watch

it already supports ?recheck=true when fetching single watch data