- Add TarifasService with findTarifaByLane, calcularCostoEnvio methods
- Create RecargosService for surcharge catalog and fuel surcharge
- Add TarifasController with full REST API for tarifas, lanes, recargos
- Implement DTOs with class-validator decorators
- Support lane-based tariff lookup with fallback to generic
- Calculate shipping cost with fuel surcharge, insurance, and other recargos
- Include peso/volumen calculation with volumetric factor (1m3=250kg)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
