merge: integrar features %incremento, analiticas saldos y descarga fraccion+UM

Merge de origin/main (commits c450cfa, e77813a):
- feature/Descargas por % de incremento de peso o cantidad
- feature/analiticas de saldos
- Manual_Descargas.docx

Mas cambios locales:
- Nueva funcion descarga por fraccion + UM (8 digitos sin BOM)
- _saldos_idx_fraccion, _consumir_fraccion, _build_cobertura_fraccion
- _build_descarga_fraccion_df, calcular_pronostico_fraccion_um,
  ejecutar_fraccion_um (modos NATURAL/DIRIGIDA, DRY_RUN)
- UI Frac/UM agregada al tab_desc
- DISTINCT en encabezado_facturas_ds y cat_pedimentos_ds

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-05-27 09:11:30 -05:00
2 changed files with 1410 additions and 75 deletions

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