feat(accounts): add option for untracking accounts on a per user basis

app/apps/accounts/migrations/0016_account_untracked_by.py

@@ -0,0 +1,20 @@
+# Generated by Django 5.2.4 on 2025-08-09 05:52
+
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('accounts', '0015_alter_account_owner_alter_account_shared_with_and_more'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='account',
+            name='untracked_by',
+            field=models.ManyToManyField(blank=True, related_name='untracked_accounts', to=settings.AUTH_USER_MODEL),
+        ),
+    ]