Gives receipt capture the same treatment policy OCR just got: a doc that
records what is in the code, separate from the spec that records what was
designed. RECEIPT_CAPTURE_SPEC.md §2 had accumulated three BUILT notes
totalling ~120 lines of findings, which is the right place for the
evidence but the wrong place to look up how the matcher picks a column.
docs/STATEMENT_OCR.md covers the pipeline, the OCR seam and its
text-layer-first rule, all eight parsers and the ordering constraints
between them, the matcher's two governing rules and the scopedRefField
table, confirm-through-BillingService, the learning write-back, and the
API surface.
Weight goes to the things that are load-bearing and invisible from the
code shape: brand detection must run to completion before layout because
Tijuana bills predial and zona federal off the same treasury header;
scopedRefField is exported because three call sites must agree or a
reference gets learned into a column nothing searches; FEDERAL_ZONE's
accountNumber holds a peso amount, so it fails the null-guards as well
as the lookup; a misread `$` is the dangerous failure, not a missing one.
Also records that CFE/CESPT/Telnor have no unit suite — they predate the
gas/predial extension and were only verified end to end.
Cross-linked from the spec, POLICY_OCR.md, PLAN.md, README and RESUME.md.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
