justice-bac gets Mike off the laptop and onto a live URL

The work bundles two things. First, a cleanup pass on the containerised dev setup - the standardised, isolated environment the team codes in - sorting out certificate and storage snags that were getting in the way of the project booting cleanly. Then the bigger move: configuration to deploy the fork to Fly.io, a hosting service that runs apps in containers close to users.

There's no written description on the pull request, so the intent has to be read from the trail of commits - diagnostic scripts added and removed, experimental changes reverted before merging. The shape is recognisable: tidy the local environment first, then add the wiring needed to ship.