18-task plan to make GalaxyMxGateway an Equipment-kind driver: retire the
SystemPlatform NamespaceKind split + mirror + alias/relay machinery, author
Galaxy points as ordinary equipment tags via the standard TagModal. Mostly
deletion + a single EF migration dropping the per-kind unique constraint.
Phases B (native alarms) + C (server historian) remain out of scope.
Co-located .tasks.json for resume.
Joseph Doherty