feat(core): add model tag to ticket comment category

ref: #807 #798

app/core/migrations/0033_alter_ticketcommentcategory_parent_and_more.py

@@ -0,0 +1,39 @@
+# Generated by Django 5.1.9 on 2025-06-09 00:26
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("assistance", "0013_alter_modelknowledgebasearticle_model"),
+        ("core", "0032_alter_ticketcategory_parent_and_more"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="ticketcommentcategory",
+            name="parent",
+            field=models.ForeignKey(
+                blank=True,
+                help_text="The Parent Category",
+                null=True,
+                on_delete=django.db.models.deletion.PROTECT,
+                to="core.ticketcommentcategory",
+                verbose_name="Parent Category",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="ticketcommentcategory",
+            name="runbook",
+            field=models.ForeignKey(
+                blank=True,
+                help_text="The runbook for this category",
+                null=True,
+                on_delete=django.db.models.deletion.PROTECT,
+                to="assistance.knowledgebase",
+                verbose_name="Runbook",
+            ),
+        ),
+    ]

app/core/models/ticket/ticket_comment_category.py

@@ -12,6 +12,8 @@ class TicketCommentCategory(
     CenturionModel,
 ):
 
+    model_tag = 'ticket_comment_category'
+
 
     class Meta:
 
@@ -26,10 +28,10 @@ class TicketCommentCategory(
 
     parent = models.ForeignKey(
         'self',
-        blank= True,
+        blank = True,
         help_text = 'The Parent Category',
         null = True,
-        on_delete = models.SET_NULL,
+        on_delete = models.PROTECT,
         verbose_name = 'Parent Category',
     )
 
@@ -42,10 +44,10 @@ class TicketCommentCategory(
 
     runbook = models.ForeignKey(
         KnowledgeBase,
-        blank= True,
+        blank = True,
         help_text = 'The runbook for this category',
         null = True,
-        on_delete = models.SET_NULL,
+        on_delete = models.PROTECT,
         verbose_name = 'Runbook',
     )