v0.0.11

fix(ai): history popover readable in dark theme

The history list renders in a Popover portal outside the chat window, so the
--ok-ai-* theme vars (defined on the window) didn't resolve there — hover/time
colours broke and the list was hard to read in dark mode. Re-apply the theme
vars + elevated background on the popover content root, and use sky-tinted
hover/active states (with an active accent bar) that read clearly in both themes.

Co-Authored-By: Claude Opus 4.8 (1M context) noreply@anthropic.com

Full Changelog: v0.0.10...v0.0.11