37db2f5dd2
34 new tests covering: - Form C bare-value-list (happy path + Form-A-recovery + type-unaware grammar limitation per handoff §2.2) - update with WHERE (column-narrowing invariant per handoff §1 bug E1; typed-slot prose for assignments and where filters) - update --all-rows (filter-clause requirement per ADR-0014) - delete with WHERE (column-narrowing; typed-slot prose for where filters) - delete --all-rows 859 baseline -> 931 passing. No bugs surfaced — the data-mutation command family was already well-shaped post-Phase-D.