test (unit/AP gateway): AP direct message ↔ XMPP `<message>` conversion: test that AP direct messages are converted to XMPP `<message>` stanzas instead of pubsub items. test that XMPP `<message>` stanzas are converted to AP direct messages (i.e. items addressed solely to the recipient, without *followers* or *public* collections). rel 366

version: "3.6"
services:

  prosody:
    image: libervia/prosody:demo
    build: prosody-demo

  backend:
    image: libervia/backend:dev-demo
    build: backend-dev-demo

  web:
    image: libervia/web:dev-demo
    build: libervia-web-dev-demo