Output more useful log message when the NodeDB is full (#4389)

src/mesh/NodeDB.cpp

@@ -1010,7 +1010,8 @@ meshtastic_NodeInfoLite *NodeDB::getOrCreateMeshNode(NodeNum n)
         if ((numMeshNodes >= MAX_NUM_NODES) || (memGet.getFreeHeap() < meshtastic_NodeInfoLite_size * 3)) {
             if (screen)
                 screen->print("Warn: node database full!\nErasing oldest entry\n");
-            LOG_WARN("Node database full! Erasing oldest entry\n");
+            LOG_WARN("Node database full with %i nodes and %i bytes free! Erasing oldest entry\n", numMeshNodes,
+                     memGet.getFreeHeap());
             // look for oldest node and erase it
             uint32_t oldest = UINT32_MAX;
             int oldestIndex = -1;