Resumen del trabajo de hoy: Se agregaron y actualizaron módulos, rutas, servicios y DTOs para las entidades trabajadas hoy, incluyendo Aduanal, Drivers, Trailers, TransportModes, TransportTypes, Transporters, Vehicles, entre otros. Se verificó la presencia de los campos tenant_id y company_id en los modelos relevantes.

backend/api/v1/modules/a76/trailers/dto.py

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+from pydantic import BaseModel
+from typing import Optional
+
+class TrailerBaseDTO(BaseModel):
+    trailer_number: str
+    ace_trailer_number: Optional[str]
+    trailer_type_key: Optional[str]
+    seal: Optional[str]
+    entity_code: Optional[str]
+    plate_number: Optional[str]
+    state: Optional[str]
+    country: Optional[str]
+    container_key: Optional[str]
+    company_id: str
+    tenant_id: str
+
+class TrailerCreateDTO(TrailerBaseDTO):
+    pass
+
+class TrailerResponseDTO(TrailerBaseDTO):
+    class Config:
+        orm_mode = True

backend/api/v1/modules/a76/trailers/models.py

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+from sqlalchemy import Column, String, ForeignKey
+from core.database import Base
+
+class Trailer(Base):
+    __tablename__ = "trailer"
+    __table_args__ = {"schema": "a76"}
+
+    trailer_number = Column(String(20), primary_key=True, nullable=False)
+    ace_trailer_number = Column(String(10), nullable=True)
+    trailer_type_key = Column(String(2), ForeignKey("a76.trailer_type.trailer_type_key"), nullable=True)
+    seal = Column(String(15), nullable=True)
+    entity_code = Column(String(1), nullable=True)
+    plate_number = Column(String(17), nullable=True)
+    state = Column(String(30), nullable=True)
+    country = Column(String(3), nullable=True)
+    container_key = Column(String(3), nullable=True)
+    company_id = Column(String, ForeignKey("a76.company.id"), nullable=False)
+    tenant_id = Column(String, ForeignKey("a76.tenants.id"), nullable=False)

backend/api/v1/modules/a76/trailers/routes.py

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+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy.orm import Session
+from . import services, dto
+from core.database import get_db
+
+router = APIRouter()
+
+@router.get("/trailers/{trailer_number}", response_model=dto.TrailerDTO)
+def get_trailer(trailer_number: str, db: Session = Depends(get_db)):
+    trailer = services.TrailerService.get_trailer_by_number(db, trailer_number)
+    if not trailer:
+        raise HTTPException(status_code=404, detail="Trailer not found")
+    return trailer
+
+@router.post("/trailers", response_model=dto.TrailerDTO)
+def create_trailer(trailer_data: dto.TrailerCreateDTO, db: Session = Depends(get_db)):
+    return services.TrailerService.create_trailer(db, trailer_data)
+
+@router.delete("/trailers/{trailer_number}", response_model=dto.TrailerDTO)
+def delete_trailer(trailer_number: str, db: Session = Depends(get_db)):
+    trailer = services.TrailerService.delete_trailer(db, trailer_number)
+    if not trailer:
+        raise HTTPException(status_code=404, detail="Trailer not found")
+    return trailer

backend/api/v1/modules/a76/trailers/services.py

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+from sqlalchemy.orm import Session
+from . import models, dto
+
+class TrailerService:
+    @staticmethod
+    def get_trailer_by_number(db: Session, trailer_number: str):
+        return db.query(models.Trailer).filter(models.Trailer.trailer_number == trailer_number).first()
+
+    @staticmethod
+    def create_trailer(db: Session, trailer_data: dto.TrailerCreateDTO):
+        new_trailer = models.Trailer(**trailer_data.dict())
+        db.add(new_trailer)
+        db.commit()
+        db.refresh(new_trailer)
+        return new_trailer
+
+    @staticmethod
+    def delete_trailer(db: Session, trailer_number: str):
+        trailer = TrailerService.get_trailer_by_number(db, trailer_number)
+        if trailer:
+            db.delete(trailer)
+            db.commit()
+        return trailer