The RSSHub feed isn't strictly chronological, so 'post everything above the
last guid' could skip tweets. Now a single poller fans out to both webhooks,
each remembering posted guids (data/twitter_seen.json, atomic writes): new
tweets anywhere above the oldest known one are posted oldest-first, old tweets
sliding in after a deletion are ignored, failed posts retry next poll and
Discord 429s are honoured. Links go out as fxtwitter.com for real embeds.
The owner gets a DM after 90 min of broken feed and again on recovery.
Night polling is now 1-2 h.
Co-Authored-By: Claude Opus 5.5 <[email protected]>