feat(itim): migration for SLMTicketBase

ref: #724 #727

app/itim/migrations/0009_slmticket.py

@@ -0,0 +1,29 @@
+# Generated by Django 5.1.8 on 2025-04-16 11:28
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0023_ticketcommentbase'),
+        ('itim', '0008_clusterhistory_clustertypehistory_porthistory_and_more'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='SLMTicket',
+            fields=[
+                ('ticketbase_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='core.ticketbase')),
+                ('ttr', models.IntegerField(blank=True, default=0, help_text='Time taken to resolve the ticket / Time to Resolution (TTR)', verbose_name='TTR')),
+                ('tto', models.IntegerField(blank=True, default=0, help_text='Time taken to Acknowledge ticket / Time to Ownership (TTO)', verbose_name='TTO')),
+            ],
+            options={
+                'verbose_name': 'SLM Ticket Base',
+                'verbose_name_plural': 'SLM Tickets',
+                'ordering': ['id'],
+            },
+            bases=('core.ticketbase',),
+        ),
+    ]