fix: show AI assistant button for all note types in card view toolbar

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

memento-note/components/note-input.tsx

@@ -926,7 +926,7 @@ export function NoteInput({
         {/* ── Toolbar ── */}
         <div className="flex items-center justify-between border-t border-border/30 px-3 py-2 gap-2">
           <TooltipProvider>
-            <div className="flex items-center gap-0.5 flex-nowrap overflow-hidden flex-1 min-w-0">
+            <div className="flex items-center gap-0.5 flex-nowrap flex-1 min-w-0">
 
               <Tooltip><TooltipTrigger asChild>
                 <Button variant="ghost" size="icon" className={cn('h-8 w-8', currentReminder && 'text-primary')} onClick={handleReminderOpen}>
@@ -945,7 +945,7 @@ export function NoteInput({
                 </TooltipTrigger><TooltipContent>{showMarkdownPreview ? t('general.edit') : t('general.preview')}</TooltipContent></Tooltip>
               )}
 
-              {type === 'text' && aiAssistantEnabled && (
+              {aiAssistantEnabled && (
                 <Tooltip><TooltipTrigger asChild>
                   <Button variant="ghost" size="sm"
                     className={cn('h-8 gap-1.5 px-2 text-xs font-medium transition-colors shrink-0', aiOpen && 'bg-primary/10 text-primary')}