Players log in to the web interface with Discord through OAuth2 with the
identify scope, so no bot token is needed. After logging in they get a
code from the login page and type /link-discord <code> in game to link
that Factorio account. One Discord account can hold up to
exp_discord.max_accounts Factorio accounts (default 3), and linking a
name moves it off any other Discord account.
Sessions and link codes live in memory on the controller plugin, the
links are stored in database/exp_discord/accounts.json. The user page
shows the linked Discord account and lets the user, or anyone with
exp_discord.link.delete, unlink it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
