esta todo ok

backend/app/models.py

@@ -3,6 +3,26 @@ from sqlalchemy.orm import relationship
 from sqlalchemy.sql import func
 from app.core.database import Base
 
+class Role(Base):
+    __tablename__ = "roles"
+    
+    id = Column(Integer, primary_key=True, index=True)
+    name = Column(String(50), unique=True, nullable=False)  # administrador, asesor, mecanico
+    display_name = Column(String(100), nullable=False)  # Administrador, Asesor, Mecánico
+    description = Column(String(255))
+    # Permisos
+    can_manage_users = Column(Boolean, default=False)
+    can_manage_roles = Column(Boolean, default=False)
+    can_manage_checklists = Column(Boolean, default=False)
+    can_create_inspections = Column(Boolean, default=False)
+    can_view_all_inspections = Column(Boolean, default=False)
+    can_view_reports = Column(Boolean, default=False)
+    can_deactivate_inspections = Column(Boolean, default=False)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    
+    # Relationships
+    users = relationship("User", back_populates="role_obj")
+
 class User(Base):
     __tablename__ = "users"
     
@@ -10,12 +30,13 @@ class User(Base):
     username = Column(String(50), unique=True, index=True, nullable=False)
     email = Column(String(100), unique=True, index=True)
     password_hash = Column(String(255), nullable=False)
-    role = Column(String(20), nullable=False)  # admin, mechanic
+    role_id = Column(Integer, ForeignKey("roles.id"), nullable=False)
     full_name = Column(String(100))
     is_active = Column(Boolean, default=True)
     created_at = Column(DateTime(timezone=True), server_default=func.now())
     
     # Relationships
+    role_obj = relationship("Role", back_populates="users")
     checklists_created = relationship("Checklist", back_populates="creator")
     inspections = relationship("Inspection", back_populates="mechanic")
     api_tokens = relationship("APIToken", back_populates="user", cascade="all, delete-orphan")