vd03 is the DEV box (vd = DEV, vq03/vq04 = QA). Historical docs called it prod/production.
Only vd03-referential uses are changed; generic 'production' wording (production HOCON,
production code paths, ASPNETCORE_ENVIRONMENT=Production, real-world production guidance)
is unchanged. One verbatim git commit message quoted in PLAN-07 is left as recorded.