To keep as much of this as we can in the `fizzy-saas` gem, this PR
opts to store console/audits models in a separate database, and so:
- the gem contains the migrations and the database config
- the app contains a separate schema file distinctly for SaaS concerns
- Rails' current behavior prevents us from easily keeping this file in the gem
Also note that the stock `audits1984` schema is updated to reference
the auditor via a UUID foreign key.
Finally, in order for the database schema file to be located in the
gem directory (and not the application directory), it's necessary to
monkeypatch `AR::DatabaseTasks.schema_dump_path` to support absolute
paths. This functionality has been proposed upstream in
https://github.com/rails/rails/pull/56290 but is awaiting a decision
from the core team.
ref: https://app.fizzy.do/5986089/cards/2469
ref: #17
Jorge Manrubia