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A GENERAL + customs contract does not let the customer book directly: they
submit a shipment request, and initiateForShipmentRequest opens a BARE booking
from it — "the request itself carries the quantities; the instance carries
none". Between initiation and completeUnderContract the booking legitimately
holds no cargo, so the export reported 0 containers for a customer who had
declared, say, 2 x 20FT. 23 bookings on dev data are in that state.
Adds two columns and one filter reading booking_requests.requested_lines:
- "Requested cargo" — the declared lines as text ("2 x 20FT"), handling the
bulk shape too (tons / item count), not only containers.
- "Requested containers" — the declared box count, with a matching min/max
filter on the list and the export.
Deliberately a separate column rather than a fallback inside the real container
count: a declared 2 x 20FT is a request, not two boxes on a booking, and
merging them would overstate operational totals. The two compose instead —
Containers = 0 AND Requested containers >= 1 is exactly the set awaiting
completion after clearance.
requested_lines is free-form jsonb, so the container array is guarded by
jsonb_typeof before jsonb_array_elements; one malformed row would otherwise
500 the whole list.