Add can_resolve_censorship permission and uncensor feature

- Add custom permission to Photo model
- Add PhotoUncensorView POST endpoint to restore private photos
- Show private photos to users with can_resolve_censorship
- Add restore button in lightgallery toolbar for censored photos

photologue/migrations/0005_add_can_resolve_censorship_permission.py

@@ -0,0 +1,17 @@
+# Generated by Django 5.2.13 on 2026-04-21 09:07
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('photologue', '0004_alter_photo_options_gallery_public_token'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='photo',
+            options={'get_latest_by': 'date_added', 'ordering': ['title'], 'permissions': [('can_resolve_censorship', 'Can resolve censorship (restore private photos)')], 'verbose_name': 'photo', 'verbose_name_plural': 'photos'},
+        ),
+    ]