docker/compose emit warnings on stderr (e.g. nothing to remove), which
tripped ErrorActionPreference=Stop and killed the run before the clone.
soften the preference around the best-effort cleanup steps.
proxy timeouts can kill a build mid-flight, leaving orphaned containers on
the channel ports, dangling build cache, and half-written clones. clean
those on every start, scoped to the channel and keeping the DB volume, so a
re-run starts from a clean slate.
The iex (irm ...) one-liner could never work against a private repo: raw.githubusercontent.com returns 404 without a token, and a git operation's Credential Manager auth does not apply to a plain irm. The prior token-passing workaround (get.ps1, 717387f) asked pilots to paste a PAT, which they will not do and may not have.
Start-ShopDBDev.ps1 is a downloaded FILE, not a web pipe, so only its git clone/fetch need auth - and those go through Git Credential Manager using the login pilots already have from cloning this repo or signing in via Visual Studio / VS Code. No token, no paste. It takes -Channel stable|edge and hands off to dev-bootstrap.ps1. DEV-BUILD-TEST.md is rewritten for the save-and-run flow with a GCM-seeding fallback.
