Step 20 of v4.3 playground plan. Document-level keydown handler:
- J = next annotation (next sorted-by-line draft, wraps)
- K = prev annotation (wraps)
- ] = toggle sidebar visibility
- Escape = clear active anchor + sidebar list selection
Active annotation gets yellow-tint (Step 18 setActiveAnchor) and the
matching gutter-badge receives focus + scrollIntoView. Aria-live region
announces position + target: "Annotering 3 av 7: <target> — <snippet>".
Skips input/textarea/select/contenteditable so playground never steals
keystrokes from form fields. Modifier keys (Ctrl/Alt/Meta) pass through
to browser shortcuts. Wired in init() after dashboard nav.
Trace: SC2 (WCAG AA keyboard), SC6, research/04 Dim 2 + Insight 5 +
Recommendation keyboard-navigation.
Kjell Tore Guttormsen
224517f205