Discord was the hardest gateway to set up: the .env template had no Discord
section at all, the wizard saved whatever was pasted, and users had to find
the Message Content Intent toggle, build an OAuth2 invite URL by hand and turn
on Developer Mode just to learn their own user ID.
The wizard now reads GET /applications/@me with the pasted token: a rejected
token is re-prompted instead of saved, an intent that is off gets a direct
link to the toggle and a re-check, the invite link is printed with the
permissions the adapter uses, and the allowlist defaults to the application's
owner (or accepted team members). Offline, the token is still saved with the
manual intent reminder. The wizard moves from the 7k-line adapter into
plugins/platforms/discord/onboarding.py.