fix: check conn_queue_entry->peer_node_id instead of conn->peer_node_id

etcp_conn_set_peer_node_id at state=0 updates conn->peer_node_id but
does not reindex the queue entry (key stays 0). Check the queue entry
directly to detect unindexed outbound connections.

src/etcp_connections.c

@@ -1679,10 +1679,13 @@ void etcp_connections_read_callback_socket(socket_t sock, void* arg) {
     }
     if (!conn) {
         struct ETCP_LINK* ol = etcp_link_find_by_addr(e_sock, &addr);
-        if (ol && ol->etcp && ol->etcp->peer_node_id == 0) {
-            conn = ol->etcp;
-            DEBUG_INFO(DEBUG_CATEGORY_CONNECTION, "[%s] reusing unindexed outbound conn for incoming INIT from peer=0x%016llx addr=%s",
-                       conn->log_name, (unsigned long long)peer_id, sockaddr_storage_to_str(&addr).str);
+        if (ol && ol->etcp && ol->etcp->conn_queue_entry) {
+            struct conn_queue_entry* ce = (struct conn_queue_entry*)ol->etcp->conn_queue_entry->data;
+            if (ce->peer_node_id == 0) {
+                conn = ol->etcp;
+                DEBUG_INFO(DEBUG_CATEGORY_CONNECTION, "[%s] reusing unindexed outbound conn (q_key=0, peer=0x%016llx) for incoming INIT from %s",
+                           conn->log_name, (unsigned long long)peer_id, sockaddr_storage_to_str(&addr).str);
+            }
         }
     }