Marc-André Bombeck 5a7bd95c7b fix(documents): read a long document through the lab scan's read core ...

Extracting lab values from a stored document still sent the whole text
in one call. A multi-page report produced more JSON than one call's
output ceiling, the answer was cut mid-fact, the parse failed twice, and
the read came back as 422 "Couldn't read the document. Try a clearer
copy." The lab scan had already learned to read the same report a page
or a part at a time, but each surface carried its own copy of the read,
so the document path never got it. It also ran under the shared 60 s
timeout, dropped every fact past 120 (or every fact when one did not
match the schema), and charged a flat reservation.

The read now lives once, in lib/documents/ocr-read.ts and ocr-plan.ts:
the per-read limits, the corrective retry, the salvage of a cut
answer's complete rows, the wire re-check and budget reservation before
each read, and the planning of a PDF a page at a time and text in parts
at line boundaries. The lab scan and the document extraction (the
extract route, its background run and the lab auto-staging) both read
through it, and the background run plans its reads on the same deadline
as a lab scan. The per-read budget moves to a shared metered budget.

The document path validates the answer fact by fact, keeps the lab
scan's row cap (400), and says why nothing came back: 422
documents.inbound.outputLimit when the reads stopped at the output
limit, 429 when the budget refused them, extractFailed only for answers
that were not the schema. A run whose reads were cut or not reached
reports `incomplete` on its result.

A guard holds the class: the output ceiling is set only in the core,
both surfaces read through runOcrReads, both runs share the deadline,
and a lab read and a document read go out under the same limits.

Refs #1257

2026-10-24 10:34:31 +02:00

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