Lock signature verification and add per-IP ingest limits

test/test_helper.exs

@@ -5,4 +5,23 @@ exclude_tags =
     [:nak_e2e]
   end
 
+# Suppress Postgrex disconnect logs that fire during sandbox teardown.
+# When a sandbox-owning process exits, the connection pool detects the
+# dead client and logs an error asynchronously. This is expected cleanup
+# noise, not a real failure — silence it so test output stays pristine.
+:logger.add_primary_filter(
+  :suppress_sandbox_disconnect,
+  {fn
+     %{msg: {:string, chars}}, _extra ->
+       if :string.find(IO.chardata_to_string(chars), "(DBConnection.ConnectionError)") != :nomatch do
+         :stop
+       else
+         :ignore
+       end
+
+     _event, _extra ->
+       :ignore
+   end, []}
+)
+
 ExUnit.start(exclude: exclude_tags)