The settings modal's left rail now lists the registered categories (icon +
title, data-driven from the SettingsRegistry) with an accent left-stripe +
surfaceHi selection per ui-design surface.md. Selecting a category drives the
modal's selection state and swaps the right panel; the rail scrolls when the
set exceeds the height. The cross-category search box atop the rail lands in
T-450.
Tests: rail lists categories and selecting one swaps the panel.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
jpmschweitzerandClaude Opus 4.8
6c6b0c731e