- Fix sat_accounts.sql: split multi-row INSERT into individual statements
so parent_id subqueries resolve correctly (was producing all NULLs)
- Add tenant_config table to v1.0 schema (required by CFDI invoicing)
- Seed tenant_config with RFC/regimen during tenant provisioning
- Fix cancel_sale to pass complete sale data for accounting reversal
- Fix CFDI XML builder: use `or` instead of dict.get() defaults to
handle explicit None values from DB (clave_prod_serv, clave_unidad)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Six endpoints: POST invoice, GET queue, GET queue/<id>, POST queue/process,
POST cancel/<id>, GET <sale_id>/pdf. Also adds cfdi_builder stub (Task 2).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Quotation and layaway endpoints were calling calculate_totals() on raw
input items without looking up unit_price/tax_rate from inventory, causing
KeyError. Added _enrich_items() helper (with customer price tier support).
Also removed non-existent discount_total column from quotations INSERT,
and made layaway complete accept a final payment for the remaining balance.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
