The order detail page and process page need the pairing, not the
matcher — until now the process page was doing an exact/substring
guess at render time and silently hiding buyer notes when the PO's
wording differed from the quote's.
- matched-attachments response gains linePairs (keyed by order_item_id,
carrying quote_item_id, confidence, tier). pairOrderLines is called
defensively — a pairing failure cannot kill the attachments
response (catch returns null → empty linePairs object, the rest of
the payload still serves).
- POST /api/v1/orders/[id]/quote-line writes the operator's confirm
decision (or unlink with empty quote_item_id) onto
order_items.quote_item. Guards against patching a line that
belongs to a different order (404 otherwise).
Both routes are additive — the existing matched-attachments fields are
unchanged, the MCP orders.list_attachments consumer keeps working.
Co-Authored-By: Claude <noreply@anthropic.com>
Dave
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