feat: Funcion de sistema tenants

backend/app/models/comment.py

@@ -5,12 +5,11 @@ Modelo para comentarios en tickets
 """
 
 from sqlalchemy import Column, String, Text, Boolean, ForeignKey, DateTime
-from sqlalchemy.dialects.postgresql import UUID
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 from datetime import datetime
 import uuid
 
-from app.core.database import Base
+from app.core.database import Base, GUID
 
 
 class TicketComment(Base):
@@ -20,20 +19,20 @@ class TicketComment(Base):
     
     # Columnas
     id: Mapped[uuid.UUID] = mapped_column(
-        UUID(as_uuid=True),
+        GUID(),
         primary_key=True,
         default=uuid.uuid4
     )
     
     ticket_id: Mapped[uuid.UUID] = mapped_column(
-        UUID(as_uuid=True),
+        GUID(),
         ForeignKey("tickets.id", ondelete="CASCADE"),
         nullable=False,
         index=True
     )
     
     author_id: Mapped[uuid.UUID] = mapped_column(
-        UUID(as_uuid=True),
+        GUID(),
         ForeignKey("users.id"),
         nullable=False,
         index=True