three nits from the itd-189 delta ruthless review including a godoc whose ordinals no longer match the code order

three nits from the itd-189 delta ruthless review including a godoc whose ordinals no longer match the code order

Three nits from the itd-189 delta ruthless review, settled at the ship commit rather than by re-opening a review.

1. checkRecordJoins's godoc now reads first SPELLING, second PRESENCE, fourth POSITION, third BUCKET. The new paragraph was inserted above the one it follows in code, so the ordinals no longer match the order.
2. iss-2608301744300631 enumerates [] and {} for the gate versus describeADR disagreement but omits !!null, which the same widening introduced and which behaves identically. The stated remedy already covers it; only the enumeration is short.
3. commands/capture.md lists the grounds and proposal refusals that hold today but not the two join refusals now armed on proposal: a target in another run, and a target outside the widening position.

Grounds

• pursued: a reader following the godoc meets the legs in the order numbered and capture.md names every refusal record_schema arms on proposal; a refusal the page omits would show it wrong