The adopted broker declares its amqps bus port (5671) in listens

mesh-broker serves the amqps bus on 5671 (the control plane and every module's
events) but the lavinmq module declared only 5672, so the firewall's forward
chain — where the broker's published ports are matched — never opened 5671, and
a consumer on another node could not reach the bus over the overlay. Part of
issue 055.

https://claude.ai/code/session_01D6qtiYU3P9jk3pnAXyAFyx

modules/lavinmq/module.json

@@ -33,6 +33,12 @@
     "broker": "/var/lib/mesh/lavinmq/broker"
   },
   "listens": [
+    {
+      "port": 5671,
+      "protocol": "tcp",
+      "from": "mesh",
+      "why": "the mesh bus \u2014 amqps, every module's events and the control plane, reached over the overlay"
+    },
     {
       "port": 5672,
       "protocol": "tcp",