feat(bookings): expose next host email

useful for some automations

drivers/place/bookings.cr

@@ -436,10 +436,18 @@ class Place::Bookings < PlaceOS::Driver
           booked = true
         end
       end
+
       # don't display upcoming bookings if they are a long way off
-      self[:next_booking] = start_time < 10.hours.from_now.to_unix ? booking : nil
+      if start_time < 10.hours.from_now.to_unix
+        self[:next_booking] = booking
+        self[:next_host] = booking["extension_data"]?.try(&.[]?("host_override")) || booking["host"]?
+      else
+        self[:next_booking] = nil
+        self[:next_host] = nil
+      end
     else
       self[:next_booking] = nil
+      self[:next_host] = nil
     end
 
     self[:booked] = booked