Visible Reservation Notes on the Calendar

I would like to request a visible indicator on the calendar whenever a note has been added to a reservation.

This could be a colored dot, an icon, a different border color, or any other clear visual sign showing that the reservation contains an important note. Clicking the indicator could open the note or the reservation details.

This would help us identify bookings that require special attention and remind us to review the relevant information before the guest arrives.