Why: Structure confirmation needs the fixed backend component, and that component's project-context imports have to be visible in the architecture baseline.
Evidence: SELF make test && make build exited 0 with backend a4d6404. The first pin attempt failed the architecture ratchet and the store compatibility count; both are fixed in this pin.
Impact: Dev now builds against the human decision schema. Delivery sync, CI, and deployment are still outstanding.
Refs: W4b human confirmation design r1
Co-authored-by: Cursor <cursoragent@cursor.com>