Two bugs in the DM with dedicated bot number setup:
1. The skill asked for the bot's own phone number to use as the JID.
But from the bot's perspective, incoming DMs appear with the SENDER's
JID (the user's personal number), not the bot's own number. The
registration must use the user's personal number as the JID.
2. DM with bot (1:1 conversation) should use --no-trigger-required, same
as self-chat. A trigger prefix is unnecessary in a private DM.
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>