Description

Release 1. Markdown table-stakes. Enter on a list line ('- ', '* ', '+ ', 'N. ', '- [ ] ') starts a new item with the same marker and indentation; ordered lists increment the number; checkboxes continue as '- [ ] '. Enter on an EMPTY list item removes the marker and exits the list. Tab / Shift+Tab indent / outdent the current list item (adjust leading whitespace). Toggle a checkbox '[ ]'<->'[x]' with a key or by editing.

Acceptance Criteria

• #1 Enter continues the list marker (ordered numbers increment)
• #2 Enter on an empty item exits the list (removes the marker)
• #3 Tab / Shift+Tab indent and outdent list items