Closes #14153: Filter ContentTypes by supported feature (#14191)

* WIP

* Remove FeatureQuery

* Standardize use of proxy ContentType for models

* Remove TODO

* Correctly filter BookmarksWidget object_types choices

* Add feature-specific object type validation

netbox/core/models/jobs.py

@@ -3,7 +3,7 @@ import uuid
 import django_rq
 from django.conf import settings
 from django.contrib.contenttypes.fields import GenericForeignKey
-from django.contrib.contenttypes.models import ContentType
+from django.core.exceptions import ValidationError
 from django.core.validators import MinValueValidator
 from django.db import models
 from django.urls import reverse
@@ -11,8 +11,8 @@ from django.utils import timezone
 from django.utils.translation import gettext as _
 
 from core.choices import JobStatusChoices
+from core.models import ContentType
 from extras.constants import EVENT_JOB_END, EVENT_JOB_START
-from extras.utils import FeatureQuery
 from netbox.config import get_config
 from netbox.constants import RQ_QUEUE_DEFAULT
 from utilities.querysets import RestrictedQuerySet
@@ -28,9 +28,8 @@ class Job(models.Model):
     Tracks the lifecycle of a job which represents a background task (e.g. the execution of a custom script).
     """
     object_type = models.ForeignKey(
-        to=ContentType,
+        to='contenttypes.ContentType',
         related_name='jobs',
-        limit_choices_to=FeatureQuery('jobs'),
         on_delete=models.CASCADE,
     )
     object_id = models.PositiveBigIntegerField(
@@ -123,6 +122,15 @@ class Job(models.Model):
     def get_status_color(self):
         return JobStatusChoices.colors.get(self.status)
 
+    def clean(self):
+        super().clean()
+
+        # Validate the assigned object type
+        if self.object_type not in ContentType.objects.with_feature('jobs'):
+            raise ValidationError(
+                _("Jobs cannot be assigned to this object type ({type}).").format(type=self.object_type)
+            )
+
     @property
     def duration(self):
         if not self.completed: