The hermetic suites encode the store contracts against fakes; PGRepo drifted
behind them three times (attempt accounting, a missing JOIN, a missing FOR
UPDATE) while every unit test stayed green. This harness replays the real
embedded migrations onto a throwaway database — its name must contain "pgint"
or the harness refuses to run — and exercises the SQL directly: sessions, the
onboarding email-OTP lifecycle (supersede/expiry/lockout), the pre-session
login consume, the op-login state machine, link and bind-code redemption,
submissions, and builds with the image admission round trip.
Run it after touching SQL under internal/api/pgrepo.go, internal/submit, or
internal/build; CONTRIBUTING.md carries the one-liner.
Lemon-miaow
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