fix(ui): handle ai window scrolling in titlebar

Add missing scroll rendering for AI windows in
the title bar draw function. This ensures AI
windows display their scrolled state consistently
with other non-chat window types.

src/ui/titlebar.c

@@ -46,6 +46,7 @@
 #include "ui/ui.h"
 #include "ui/titlebar.h"
 #include "ui/inputwin.h"
+#include "ui/win_types.h"
 #include "ui/window_list.h"
 #include "ui/window.h"
 #include "ui/screen.h"
@@ -252,6 +253,10 @@ _title_bar_draw(void)
         _show_muc_privacy(mucwin);
         _show_attention(current, mucwin->has_attention);
         _show_scrolled(current);
+    } else if (current && current->type == WIN_AI) {
+        ProfAiWin* aiwin = (ProfAiWin*)current;
+        assert(aiwin->memcheck == PROFAIWIN_MEMCHECK);
+        _show_scrolled(current);
     }
 
     _show_self_presence();