[alerts] Add Windmill Flow to chain together alerts_gcs, comapeo_alerts, and alerts_twilio scripts

[rudokemper]

Feature Request

After #60 and #59 are merged, let's add a Windmill Flow that runs the alerts_gcs, comapeo_alerts, and alerts_twilio scripts in succession.

In doing so, let's optimize each script to provide the right outputs to be picked up by the next script in sequence, and handle outputs from the previous script in sequence. This will likely require some modifications to the logic of each script.

We will want the following behavior:

• comapeo_alerts only posts alerts if new alerts have been written to the database.¹
• alerts_twilio only sends a request to Twilio to queue a message if new alerts have been written to the database and once comapeo_alerts has been run.

Footnotes

1. Unless I'm wrong, as of this moment a POST request to the CoMapeo Cloud API will only accept new docId alerts. So if any rows of existing alerts are updated, but the docId stays the same, the CoMapeo API will reject these. ↩