Adds a 预览 action (enabled once an article has a Dimzou document) opening a
sheet that fetches and renders the draft — cover, title, summary, and body HTML
(typography/prose). Re-enables the @tailwindcss/typography plugin for prose.
Adds an "编辑" action opening a sheet form to edit a robot author's status,
persona, positioning, target readers, and the article/image/publishing style
objects (JSON-validated as objects). Saves via the existing admin PUT endpoint,
then refetches the enriched list.
- searchable CategoryPicker (Popover+Command) reusable across studio pages,
plus useCategoryOptions hook (shared tree query + id→name resolver)
- filter bar with category + status filters and a reset action
- new columns: account (avatar + display_name + uid), category name; persona
demoted to a secondary column; display_name/category surfaced in detail sheet
