subscribe to all direct message channels in conversation

[jencompgeek]

What is in this PR?

We are adding another agent to send private checkins to users. Rather than hard-coding the websocket subscription to this agent's direct channel (and jargonFilter's direct channel), this PR modifies assistant to subscribe to all direct channels in the conversation. Also contains a timing fix on emitting the conversation:join to avoid creation of duplicate direct channels

Changes in the codebase

See above

Documentation and automated testing

Did you:

• document any breaking changes in your commit messages?
• document your changes as comments in the code? Use TSDoc format where appropriate.
• update the README and docs to be clear and easy to use for end users and developers?
• add and/or update automated tests?
• update team documentation of any new or changed environment variables?
• add a What's New entry in content/whatsNew.ts for new features?

Testing this PR

• Not necessary, but could test in conjunction with BE PR add private proactive checkin DMs to eventAssistant llm_engine#147. Remaining test steps assume this is the case (if not, just verify that jargon clarifications still come through)
• Create an EA convo for NextSpace and Zoom and use a video with some dense jargon
• Verify jargon clarifications still displayed in Berkie tab during talk
• If you remain quiet, you should eventually get a private checkin message during a particularly dense part of the transcript.
• you can also try sending several DMs to Berkie expressing doubt or disagreement with a topic to trigger it.
• Go incognito as a couple of different users expressing similar concerns to trigger a private message indicating that others share the sentiment. Be aware that you can only get one of the above 3 types of DMs every 10 minutes, so choose wisely :)

Additional information

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
nextspace	Ready	Preview, Comment	Jun 5, 2026 12:56pm

[johnnycrich]

Great solution for dedupe here!