Create a Timestamp for New Account Creation

[mjoerke]

Timestamp for New Account Creation

:recycle: Current situation & Problem

We are transitioning the backend from a fixed, 15min featurization schedule to a Firestore listener-based schedule (see this PR for progress). As part of this migration, we have set up a listener on the studies/STUDY_ID/users collection to monitor new users. This listener is not triggered by changes to the users collection, as this would trigger on every single data upload to any user. Instead, I propose adding a created_at timestamp to each user document, and having the listener trigger on the query: new_user_query = users_ref.where(filter=FieldFilter('created_at', '>', self.last_query_time)).

However, this field is not automatically created for new users. This PR adds functionality to the iOS app to set the field appropriately upon account creation.

:gear: Release Notes

• Added a new function PrismaStandard.setAccountTimestamp() that writes the current time to the created_at field in the user's document
• Call standard.setAccountTimestamp() in the AccountOnboarding continuation

:books: Documentation

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:white_check_mark: Testing

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[codecov[bot]]

Codecov Report

Attention: 76 lines in your changes are missing coverage. Please review.

Comparison is base (b665da2) 37.67% compared to head (eb54dca) 35.78%. Report is 1 commits behind head on main.

Additional details and impacted files

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