Post detail overlay now renders content as a tweet chain:
- Each tweet is a spine-connected row (dot + connecting line) with
tweet number, per-platform char counter, and inline textarea in
edit mode
- [+ Add tweet] button at the bottom appends a new empty tweet to
the chain; × per tweet removes it (hidden when only one tweet)
- Save writes threadPosts[] when len > 1, else plain content (and
clears threadPosts), so single drafts stay flat
- View mode shows tweets stacked vertically reading top-to-bottom,
edit mode keeps the same layout with editable boxes
- Per-platform limits (x/twitter 280, bluesky 300, threads 500, li
3000, ig 2200, yt 5000) drive live char counters; over-limit
goes red bold
- Grid cards gain a 🧵 N badge when threadPosts.length > 1
- Fix FLIP animation replaying on every re-render (now guarded with
an instance flag, plays once per open)
Bump folk-thread-gallery cache to v=5.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>