* feat(labrinth): rework v3 side types to a single `environment` field
This field is meant to be able to represent the existing v2 side type
information and beyond, in a way that may also be slightly easier to
comprehend.
* chore(labrinth/migrations): use proper val for `HAVING` clause
* feat(labrinth): add `side_types_migration_review_status` field to projects
* Fix random_projects route not returning the requested number of projects
* fix(labrinth): further improve random project route SQL query
* chore: fix typo in comment
* tweak(labrinth): more apparent and fast randomness for `random_projects_get`
* tweak(labrinth): even better random projects query
* chore: address formatting review
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Co-authored-by: Alejandro González <me@alegon.dev>
