A document uploaded with aiRead=defer is now indexed locally by any
automatic path, because the indexer reads the marker from the row rather
than from the job. Index all for search leaves such documents out and no
longer counts them. Only an explicit Read with AI or Generate summary ends
the hold.
Uploads that send a body keep their slot of the hourly limit, duplicates
included; handing it back let a token send the same bytes under id after
id for free. One document takes at most 20 further source ids, beyond
which the upload answers 409 documents.inbound.sourceAliasLimit. The
query-string key check is metered on the lookup allowance it shares with
GET /api/documents/inbound/source.
Refs #1038
A keyed upload that matched a stored document by its bytes never recorded
its key, so deleting that document let the next import run store it again.
Such keys are now kept as aliases of the document, the source-key check
reads them, and the purge carries them into the ledger with the row's own.
A source key may ride the query string and is then answered before the
body is read or the hourly allowance charged; an upload answered as a
duplicate hands its slot back. GET /api/documents/inbound/source answers
whether a key is held, under the same documents:write scope, so an
importer can skip a download.
aiRead=defer is stored on the row. The summary catch-up, the summary job
and lab auto-staging skip such documents until an explicit Read with AI
or Generate summary clears the marker; backup and restore carry it.
A documents:write caller no longer sees the quota figures on a full vault.
Refs #1038