Deletes the direct GameData/Aetheria.cc opens (FireControlCut124Tests x3, FireControlCut7Tests, MiningCut3Tests x2,
RestoredHullsTests x11) in favour of TestCatalog.Repo, and the eight copies of the shipped-assembly registry in favour of
TestCatalog.Registry() (real-catalog-readers-bypass). Pirates and Roles command tests keep copying the shipped catalog (they
rewrite a copy through AetherDb) and take only the registry.
Builds; not yet run.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>