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/serializers/reference/ReferenceItem.py

@@ -0,0 +1,48 @@
+from rest_framework import serializers
+
+from core.apps.evaluation.models import ReferenceitemModel
+
+
+class BaseReferenceitemSerializer(serializers.ModelSerializer):
+    type_display = serializers.CharField(source="get_type_display", read_only=True)
+    parent_name = serializers.CharField(source="parent.name", read_only=True, default=None)
+
+    class Meta:
+        model = ReferenceitemModel
+        fields = [
+            "id",
+            "type",
+            "type_display",
+            "name",
+            "parent",
+            "parent_name",
+            "order",
+            "is_active",
+        ]
+
+
+class ListReferenceitemSerializer(BaseReferenceitemSerializer):
+    class Meta(BaseReferenceitemSerializer.Meta):
+        pass
+
+
+class RetrieveReferenceitemSerializer(BaseReferenceitemSerializer):
+    children = serializers.SerializerMethodField()
+
+    class Meta(BaseReferenceitemSerializer.Meta):
+        fields = BaseReferenceitemSerializer.Meta.fields + ["children"]
+
+    def get_children(self, obj):
+        children = obj.children.filter(is_active=True).order_by("order", "name")
+        return ListReferenceitemSerializer(children, many=True).data
+
+
+class CreateReferenceitemSerializer(BaseReferenceitemSerializer):
+    class Meta(BaseReferenceitemSerializer.Meta):
+        fields = [
+            "type",
+            "name",
+            "parent",
+            "order",
+            "is_active",
+        ]