Track whether something is being dragged (for showing empty dropzone)
StaticDEFAULT_StaticPARTSAdd a deck ID to the hotbar setting.
– insert into #ui-bottom above the hotbar
Handle drop data — accept Cards (from sidebar) and CharacterDeck (from actor sheet).
Scry workflow: prompt for count, then open ScryDialog.
Remove a deck ID from the hotbar setting.
Set up native drag-and-drop on the hotbar element (once).
Set up global drag listeners to show/hide the empty dropzone. Uses capture phase so we see the event even if a handler stops propagation. Called once during initialization.
Guard against duplicate drop-zone listeners