Connect a Discord server via OAuth (bot authorization) and schedule/publish
messages to its channels, with mentions and rich embeds.
- Connect: custom Socialite Discord provider (bot scope) maps the authorized
guild to a SocialAccount; throws if no server was authorized.
- Publish: DiscordPublisher posts via the global bot token, validates the chosen
channel belongs to the connected guild (anti cross-guild), optimizes media,
builds allowed_mentions only from explicit mention chips (no accidental pings),
and renders rich embeds.
- Compose: per-post channel picker (live lookup), mention autocomplete and an
embed editor, gated by a required-channel compliance rule; Discord post preview.
- Enum/config/content-type wiring, ConnectionVerifier health check, throttled
lookup endpoints, i18n (en/es/pt-BR), and tests.
Operators must create a Discord application and set DISCORD_CLIENT_ID,
DISCORD_CLIENT_SECRET, DISCORD_BOT_TOKEN and DISCORD_CLIENT_REDIRECT.
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