# Project Closeout

## Final Status

Against [docs/model.md](/C:/Work/AI/POS/docs/model.md) and the implemented-state companion
[docs/model-alignment.md](/C:/Work/AI/POS/docs/model-alignment.md), the backend is now in
the following range of completion:

- aggregate / lifecycle / API structure: `92-94%`
- ledger / payments / reconciliation: `90-93%`
- promotion engine: `86-90%`
- persistence / read models: `88-91%`
- overall useful completion against the model: `89-92%`

This should be understood as a practically complete backend foundation with
remaining refinement work, not as a scaffold or partial rewrite.

## What Is Closed

The project now has working coverage for:

- `Ticket` as aggregate root
- explicit `articulos[]`, `items[]`, `pagos[]`, `promociones[]`, `movimientos[]`
- server-generated `VENTA_ITEM`, `PROMOCION`, and `PAGO`
- proportional payment distribution over net item saldo
- fiscal scaling of derived movements from the original `VENTA_ITEM`
- ITEM methods:
  - `MAYORISTA`
  - `VENTAXBULTO`
  - `GRUPOMAYORISTA`
  - `COMBO`
  - `CANTIDAD`
- payment-side methods:
  - `COMBO`
  - `CANTIDAD`
  - `MODO PAGO CONSULTA`
  - `POSTPAGO`
- `CUPON` as a non-financial benefit
- strong reconciliation and finalization checks
- normalized persistence well beyond the initial hybrid scaffold
- operational read models with movement-derived breakdown
- domain-heavy test coverage plus SQL Server integration coverage
- Maven test hygiene aligned with JDK 25 / Mockito agent requirements

## What Still Remains

The remaining work is refinement, not missing architecture:

- deeper heuristics for ambiguous promotion paths, especially around `COMBO`
- harder reconciliation edge cases on very complex tickets
- further reduction of residual snapshot dependence where useful
- richer operational read models if operations require them
- additional end-to-end and SQL Server domain scenarios

## Delivery Assessment

Current status is best described as:

- `ready` for continued development and integration
- `very advanced` for business validation
- `not fully exhaustive` against every theoretical edge case in the original model

In practical terms, the project can be treated as closed on core architecture and
main business flow implementation. Remaining work should be managed as hardening
and final domain refinement.