Relay publishers' text/links to all contacts via the native /feed command
(reports 'Forwarded to N contact(s), M errors'); reply to non-publishers with
the prohibited message and internally delete their message (CIDMInternal, as
upstream does). Filter content to text/links. Publishers accept 'Name' or
'ID:Name'; welcome/prohibited defaults list the publishers. Add publishers +
prohibited-reply fields to the create form. Adds broadcast_test.py (3 in-process
controllers: bot + publisher + subscriber) — passes.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
6232c1589d