Discovered before implementation: discard-and-rebuild cannot exist. Progress
events, tasks, decisions and review contracts reference workplans with ON DELETE
RESTRICT, and 1067 of 1075 workplans carry such a reference. Deleting a workplan
would delete the hub-native records attached to it, which ADR-010 decision 4
forbids and the schema refuses.
The database is enforcing this ADR's own boundary one layer down. A progress
event is a fact that happened; destroying it to tidy a derived projection loses
hub-native truth to fix a derived-state problem.
Reset now reconciles: create what is missing, update what differs, retire what no
longer derives — and retirement must be visible rather than silent.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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