feat: add ReferenceItem model and update QuickEvaluation FKs

- Create ReferenceitemModel with type, name, parent (self FK), order, is_active fields
- Add ReferenceType choices: brand, marka, color, fuel_type, body_type, car_position, state_car
- Implement ReferenceItem API (list, retrieve) with filter by type/parent/is_active, search, ordering
- Add ReferenceItem admin with list_filter, search, inline editing
- Change QuickEvaluation FK fields from shared.OptionsModel to evaluation.ReferenceitemModel
- Update serializers and views to use .name instead of .key
- Add ReferenceItem to unfold admin navigation

core/apps/evaluation/choices/reference.py

@@ -0,0 +1,12 @@
+from django.db import models
+from django.utils.translation import gettext_lazy as _
+
+
+class ReferenceType(models.TextChoices):
+    BRAND = "brand", _("Brand")
+    MARKA = "marka", _("Marka")
+    COLOR = "color", _("Color")
+    FUEL_TYPE = "fuel_type", _("Fuel type")
+    BODY_TYPE = "body_type", _("Body type")
+    CAR_POSITION = "car_position", _("Car position")
+    STATE_CAR = "state_car", _("Car state")