Clicking a post card expands it into a FLIP-animated detail overlay
instead of navigating away. Overlay has two modes:
View mode — full post content, schedule, hashtags, campaign, char
count. Actions: Open in Campaign (external link), Edit.
Edit mode — textarea for content, status picker (Draft/Scheduled/
Published), datetime-local for scheduled date, space-separated
hashtag input. Saves via offline runtime changeDoc so the post list
updates live everywhere else the doc is subscribed. Hashtag strings
are auto-prefixed with # if missing. ESC cancels edit; ESC again
(or backdrop click) closes the overlay. Backdrop blur + smooth
translate+scale entry from the clicked card's rect.
Threads still use the dedicated thread-editor since they have
multi-tweet rich editing. Card anchors become buttons with
data-post-id; cursor/focus-visible styling preserved. Cache bump
folk-thread-gallery to v=4.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>