🎨 fix(theme): align UI controls with global radius tokens

Remove hard-coded and capped border radius overrides so shared controls and feature actions consistently follow the active theme radius.

- Replace fixed radius utilities with semantic theme-aware radius tokens
- Remove redundant `rounded-full` and pixel-based overrides from header, toolbar, Playground, and utility actions
- Drop unused `StatusBadge` rounded prop usage
- Keep existing component behavior intact while improving global theme consistency

web/default/src/features/system-settings/integrations/amount-options-visual-editor.tsx

@@ -102,7 +102,7 @@ export function AmountOptionsVisualEditor({
                     e.stopPropagation()
                     handleRemove(amount)
                   }}
-                  className='hover:bg-muted-foreground/20 size-auto rounded-full p-0.5'
+                  className='hover:bg-muted-foreground/20 size-auto p-0.5'
                   aria-label={t('Remove ${{amount}}', { amount })}
                 >
                   <X className='h-3.5 w-3.5' />