fix: add 0037 migration to align WorkOrderTravelExpensesTable BaseModel fields

BaseModel defines id with uuid4 default, help_text, and verbose_name on
created_at/updated_at/is_active. Migration 0036 omitted these, causing
Django to detect pending model changes and refuse to migrate on the server.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

backend/modules/fleet/migrations/0037_alter_workordertravelexpensestable_created_at_and_more.py

@@ -0,0 +1,32 @@
+import uuid
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('fleet', '0036_workordertravelexpenses_table'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='workordertravelexpensestable',
+            name='created_at',
+            field=models.DateTimeField(auto_now_add=True, verbose_name='Vrijeme kreiranja'),
+        ),
+        migrations.AlterField(
+            model_name='workordertravelexpensestable',
+            name='id',
+            field=models.UUIDField(default=uuid.uuid4, editable=False, help_text='Unikatni identifikator entiteta (UUID).', primary_key=True, serialize=False),
+        ),
+        migrations.AlterField(
+            model_name='workordertravelexpensestable',
+            name='is_active',
+            field=models.BooleanField(default=True, verbose_name='Aktivan zapis'),
+        ),
+        migrations.AlterField(
+            model_name='workordertravelexpensestable',
+            name='updated_at',
+            field=models.DateTimeField(auto_now=True, verbose_name='Vrijeme zadnje izmjene'),
+        ),
+    ]