Better debug output when working with bad circular boundaries

and trying to get their shape corrected
refs idaholab#23972

framework/src/meshgenerators/CircularBoundaryCorrectionGenerator.C

@@ -374,7 +374,12 @@ CircularBoundaryCorrectionGenerator::circularCenterCalculator(const std::vector<
 
   for (const auto & pt : pts_list)
     if (!MooseUtils::absoluteFuzzyEqual((pt - circ_origin).norm(), radius, tol))
-      paramError("input_mesh_circular_boundaries", "the boundary provided is not circular.");
+      paramError("input_mesh_circular_boundaries",
+                 "the boundary provided is not circular. The generator found point " +
+                     Moose::stringify(circ_origin) +
+                     " to be the likely circle origin to the boundary, with a radius of " +
+                     std::to_string(radius) + ". However, boundary node " + Moose::stringify(pt) +
+                     " is at a radius of " + std::to_string((pt - circ_origin).norm()));
   return circ_origin;
 }
 

framework/src/utils/MooseMeshUtils.C

@@ -466,6 +466,7 @@ makeOrderedNodeList(std::vector<std::pair<dof_id_type, dof_id_type>> & node_assm
   // a flag to indicate if the ordered_node_list has been reversed
   bool isFlipped = false;
   // Start from the first element, try to find a chain of nodes
+  mooseAssert(node_assm.size(), "Node list must not be empty");
   ordered_node_list.push_back(node_assm.front().first);
   ordered_node_list.push_back(node_assm.front().second);
   ordered_elem_id_list.push_back(elem_id_list.front());