feat: Refactor DTOs and models to use from_attributes, update database schema references, and implement trailer types

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

@@ -35,7 +35,7 @@ class UserTenant(Base):
         UniqueConstraint(
             "keycloak_user_id", "tenant_id", "company_id", name="uq_user_tenant"
         ),
-        {"schema": "a76"},
+        {"schema": "a76", "extend_existing": True},
     )
 
     # Primary Key