a9a04cff97
12 tests across schema_serial_pk / text_pk / multi_table / every_type. Pins (a) Form B skips auto-gen columns from the slot list (regression for handoff-12 §B fix); (b) wrong-count value lists are now flagged at typing time, not only at submit (the previous commit's fix); and (c) per-type slot prose advances correctly through every Type variant.