🎨 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/components/profile-dropdown.tsx

@@ -38,12 +38,7 @@ export function ProfileDropdown() {
     <>
       <DropdownMenu modal={false}>
         <DropdownMenuTrigger
-          render={
-            <Button
-              variant='ghost'
-              className='relative size-6 rounded-full p-0'
-            />
-          }
+          render={<Button variant='ghost' className='relative size-6 p-0' />}
         >
           <Avatar className='size-6'>
             <AvatarFallback