Scrape Single function to firebase v2

[AstorDG]

Summary

1. Added a v2 version of the scrape single hearing function that uses a firebase v2 function. The function signature is a bit different. OnCall is imported directly instead of from the https module and there is only one argument
2. I changed the import names to mark the v1 firebase modules more clearly by adding /v1 to the end.
3. Refactored the checkAuth and checkAdmin functions to take an argument of type CallableRequest or the old type: https.CallableContext.
4. The front end now calls the v2 function in the Scrape Hearing Form Function.

Closes #2041

Known issues

I did also keep in the old scrape single hearing function but if this works as expected this is unnecessary and can be deleted.

Steps to test/reproduce

1. I'm not actually sure how to invoke this function but it should be somewhere under the admin page of the hearings tab.

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Project	Deployment	Actions	Updated (UTC)
maple-dev	Ready	Preview, Comment	Feb 3, 2026 5:37pm

[kiminkim724]

Looks like it works from the admin page on local! But I think we could probably get rid of the v1 function, will defer to @Mephistic