Slack caps an app at 50 slash commands and main fills all 50. 9c4eecb53d
made room for /initiate-setup by demoting /commands to /hermes commands.
Setup is the rarer command on Slack (the first-message pointer to it only
ships in the Store desktop app), so it takes the /hermes-only slot instead
and /commands is native again.
The first-contact note spells the command per platform from one table:
/initiate_setup on Telegram, /hermes initiate-setup on Slack.
Docs: the onboarding config section and the /initiate-setup row describe
the profile offer as the default and the setup pointer as the Store app's.
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