Based on the git diff provided, here's a concise and descriptive commit message:

feat: add passkey authentication and enhance user preferences

- Add passkey login security event type with fingerprint icon
- Include request and site context in email confirmation for backend
- Add user_id exact match filter to prevent incorrect user lookups
- Enable PATCH method for updating user preferences via API
- Add moderation_preferences support to user settings
- Optimize ticket queries with select_related and prefetch_related

This commit introduces passkey authentication tracking, improves user
profile filtering accuracy, and extends the preferences API to support
updates. Query optimizations reduce database hits for ticket listings.

backend/apps/moderation/migrations/0010_moderationauditlog.py

@@ -0,0 +1,96 @@
+# Generated by Django 5.2.10 on 2026-01-11 18:06
+
+import apps.core.choices.fields
+import django.db.models.deletion
+import uuid
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("moderation", "0009_add_claim_fields"),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="ModerationAuditLog",
+            fields=[
+                ("id", models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                (
+                    "action",
+                    apps.core.choices.fields.RichChoiceField(
+                        allow_deprecated=False,
+                        choice_group="moderation_audit_actions",
+                        choices=[
+                            ("approved", "Approved"),
+                            ("rejected", "Rejected"),
+                            ("claimed", "Claimed"),
+                            ("unclaimed", "Unclaimed"),
+                            ("escalated", "Escalated"),
+                            ("converted_to_edit", "Converted to Edit"),
+                            ("status_changed", "Status Changed"),
+                            ("notes_added", "Notes Added"),
+                            ("auto_approved", "Auto Approved"),
+                        ],
+                        db_index=True,
+                        domain="moderation",
+                        help_text="The action that was performed",
+                        max_length=50,
+                    ),
+                ),
+                (
+                    "previous_status",
+                    models.CharField(blank=True, help_text="Status before the action", max_length=50, null=True),
+                ),
+                (
+                    "new_status",
+                    models.CharField(blank=True, help_text="Status after the action", max_length=50, null=True),
+                ),
+                ("notes", models.TextField(blank=True, help_text="Notes or comments about the action", null=True)),
+                (
+                    "is_system_action",
+                    models.BooleanField(
+                        db_index=True, default=False, help_text="Whether this was an automated system action"
+                    ),
+                ),
+                ("is_test_data", models.BooleanField(default=False, help_text="Whether this is test data")),
+                (
+                    "created_at",
+                    models.DateTimeField(auto_now_add=True, db_index=True, help_text="When this action was performed"),
+                ),
+                (
+                    "moderator",
+                    models.ForeignKey(
+                        blank=True,
+                        help_text="The moderator who performed the action (null for system actions)",
+                        null=True,
+                        on_delete=django.db.models.deletion.SET_NULL,
+                        related_name="moderation_audit_logs",
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
+                (
+                    "submission",
+                    models.ForeignKey(
+                        help_text="The submission this audit log entry is for",
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="audit_logs",
+                        to="moderation.editsubmission",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "Moderation Audit Log",
+                "verbose_name_plural": "Moderation Audit Logs",
+                "ordering": ["-created_at"],
+                "indexes": [
+                    models.Index(fields=["submission", "created_at"], name="moderation__submiss_2f5e56_idx"),
+                    models.Index(fields=["moderator", "created_at"], name="moderation__moderat_591c14_idx"),
+                    models.Index(fields=["action", "created_at"], name="moderation__action_a98c47_idx"),
+                ],
+            },
+        ),
+    ]