feat: Add case review messaging system with feedback and query capabilities

- Introduced CaseReviewMessage model to handle feedback and queries for cases.
- Implemented views for displaying user and CID messages, including outstanding feedback.
- Created templates for collection feedback overview and user messages.
- Added functionality for acknowledging messages and sending feedback or queries.
- Enhanced collection detail view to show outstanding messages and user message statistics.
- Added tests for handling duplicate DICOM uploads without series.

atlas/migrations/0097_casereviewmessage.py

@@ -0,0 +1,33 @@
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("generic", "0031_flag"),
+        ("atlas", "0096_casecollection_show_differentials_post"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="CaseReviewMessage",
+            fields=[
+                ("id", models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
+                ("message_type", models.CharField(choices=[("feedback", "Feedback"), ("query", "Query"), ("reply", "Reply")], default="query", max_length=20)),
+                ("message", models.TextField()),
+                ("author_label", models.CharField(blank=True, max_length=255)),
+                ("requires_acknowledgement", models.BooleanField(default=False)),
+                ("acknowledged_at", models.DateTimeField(blank=True, null=True)),
+                ("created_at", models.DateTimeField(auto_now_add=True)),
+                ("updated_at", models.DateTimeField(auto_now=True)),
+                ("author", models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name="case_review_messages_authored", to=settings.AUTH_USER_MODEL)),
+                ("case", models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name="case_review_messages", to="atlas.case")),
+                ("cid_user_exam", models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name="case_review_messages", to="generic.ciduserexam")),
+            ],
+            options={
+                "ordering": ("created_at",),
+            },
+        ),
+    ]