add speaker to upcoming job notif

app/jobs/telegram_notify_upcoming_job.rb

@@ -11,10 +11,13 @@ class TelegramNotifyUpcomingJob < ApplicationJob
         notify_names = assignees.map { |a| a.telegram_username ? "@#{a.telegram_username}" : a.name }
 
         message = notify_names.join(' ') + ": Your scheduled session <i>#{session.title}</i> starts at <b>#{session.starts_at.strftime("%H:%M")}</b> on <b>#{session.stage.name}</b>"
+        message += "Speakers: #{session.speakers.map(&:name).join(', ')}"
+
         TelegramGroupChatNotificationJob.perform_later(target: "-316096320", text: message, parse_mode: 'HTML')
         # TelegramGroupChatNotificationJob.perform_now(target: "2192297", text: message, parse_mode: 'HTML')
       else
         message = "<b>⚠️ No assignees</b> for session <i>#{session.title}</i> starting at <b>#{session.starts_at.strftime("%H:%M")}</b> on <b>#{session.stage.name}</b>"
+        message += "Speakers: #{session.speakers.map(&:name).join(', ')}"
         TelegramGroupChatNotificationJob.perform_later(target: "-316096320", text: message, parse_mode: 'HTML')
         # TelegramGroupChatNotificationJob.perform_now(target: "2192297", text: message, parse_mode: 'HTML')
       end