refactor(web): align Frame KPI settings chrome and a11y

Выровнять KPI на IconTile, вынести settings из settings-7, Sheet/AlertDialog и skip-link в общем chrome.

Co-authored-by: Cursor <[email protected]>

apps/web/src/lib/ui-surface.ts

@@ -12,6 +12,10 @@
  */
 export const UI_SURFACE = 'frame' as const
 
+/** Skip link — keyboard: first Tab. */
+export const SKIP_TO_CONTENT_CLASS =
+  'bg-background text-foreground ring-ring sr-only focus:not-sr-only focus:absolute focus:top-2 focus:left-2 focus:z-50 focus:rounded-md focus:px-3 focus:py-2 focus:text-sm focus:font-medium focus:shadow-sm focus:ring-2'
+
 /** Grid for ReUI stats-12 KPI rows (3–6 tiles). */
 export const kpiStatGridClassName = '@container w-full'