feat(ui): phase 3 — peek pane redesign with modes
- Full peek pane rewrite: idle state, stream peek, card peek
- Idle state shows keyboard shortcuts per view
- Stream peek: eyebrow (glyph + kind + id + timestamp), body, tags, context
- Card peek: card container with eyebrow, title, desc, meta, content sections
- Decision section with choice/rationale/rejected display
- Steps section with run button
- Code section with content display
- Run mode: interactive checklist with progress bar + step toggling
- Fill mode: inline slot editor with tab navigation + copy resolved
- Edit mode: form fields for title/desc/body/tags
- Mode pills (running/filling/editing) with colored badges
- Pin/unpin action via keyboard (p) and button
- Escape exits any active mode
- Keyboard shortcuts: r=run, f=fill, e=edit, p=pin in cards view
lerko
1c95902e2b