Reply, topic message, add-poll-option, poll-vote, and create-poll now
broadcast each protocol field as its own OP_RETURN script push instead of
combining them into one push. The indexer requires three pushes for reply,
topic message, and poll children, and accepts four for create-poll; the
combined form was rejected or misparsed.
hex.js builds the txid and text as separate pushes, and a new
memo-multipush adapter teaches minimal-slp-wallet's single-push sendOpReturn
to expand an array of fields into separate pushes. Acceptance step handlers
assert the individual pushes, and unit/property tests cover the new shape.
By coder.