Status messages now use a sequence counter so rapid actions don't
cause premature clearing. Detail pane shows scroll position and
supports pgup/pgdown/g/G. Capture drawer border includes inline
label. Cards view groups by intent (pinned/grab/read/fill) with
gutter labels matching the stream view's date grouping pattern.
Stream/cards toggle with 1/2 keys. Cards view with intent filtering
(tab cycles grab/read/fill/all), sort cycling (s key), pinned-first
ordering, and affordance badges. Promote picker (p key) with card type
selection and auto-detection from body content. Detail view renders
card_data per type: checklist steps, template slots, decision fields,
link URLs.
Extracts generateCardData to internal/carddata for reuse across cmd
and tui packages.