Add admin feature to search uploads by pixel hash and corresponding template

atlas/views.py

@@ -2012,6 +2012,31 @@ def all_uploads(request, case_id: int | None = None):
     return user_uploads(request, case_id, user_only=False)
 
 
+@staff_member_required
+def uploads_hash_search(request):
+    query = (request.GET.get("hash") or "").strip().lower()
+    dicoms = UncategorisedDicom.objects.none()
+
+    if query:
+        dicoms = UncategorisedDicom.objects.filter(
+            image_blake3_hash__icontains=query
+        ).select_related("user", "series").order_by("-created_date")
+
+    paginator = Paginator(dicoms, 50)
+    page_number = request.GET.get("page")
+    page_obj = paginator.get_page(page_number)
+
+    return render(
+        request,
+        "atlas/uploads_hash_search.html",
+        {
+            "hash_query": query,
+            "page_obj": page_obj,
+            "result_count": paginator.count,
+        },
+    )
+
+
 @user_passes_test(lambda u: u.is_superuser)
 def other_user_uploads(request, user_pk: int, case_id: int | None = None):
     return user_uploads(request, case_id, user_only=False, user_pk=user_pk)