Admission now sizes two replies built from the record the registry
would store: the snapshot reply serving it alone and the receipt
echoing its value under the put's message id with the server's default
provenance, through the one receipt builder the send path uses. A put
whose larger reply exceeds maxPayloadBytes, 65535 fragments or the
reliable queue is refused before onDocumentPutRaw, so a stored put
always gets its receipt when the application stores through the
registry and echoes that value. The existing fallback (a receipt that
cannot be sent all the same reaches onError, and the peer a
cultnet.error.v0) stays for handlers that acknowledge something larger.
The served-bound fixtures carry a long storedAt, which the served record
keeps and the receipt replaces, so they still pin the served bound; a
new test pins the receipt bound: one byte over is refused, exactly at
the limit is stored and receipted.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>