Corregge chiusura diretta YouTube e stop sessione senza broadcast.

transition_live_broadcast richiede status, id e part; evita 500 in chiusura
diretta Match Live TV quando non c'è broadcast YouTube.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/services/sessions/stop.rb

@@ -8,7 +8,7 @@ module Sessions
       cancel_timeout_job
       Sessions::RegiaAccess.revoke!(@session)
       @session.end_stream!
-      Youtube::BroadcastService.new(@session.match.team).complete_broadcast!(@session.youtube_broadcast_id)
+      complete_youtube_broadcast! if @session.youtube_broadcast_id.present?
       Recordings::IndexSession.new(@session).call
       Mediamtx::Client.new.delete_path(@session)
       log_event("ended")
@@ -27,5 +27,11 @@ module Sessions
     def log_event(type)
       @session.stream_events.create!(event_type: type, occurred_at: Time.current, metadata: {})
     end
+
+    def complete_youtube_broadcast!
+      Youtube::BroadcastService.new(@session.match.team).complete_broadcast!(@session.youtube_broadcast_id)
+    rescue Youtube::BroadcastService::Error => e
+      Rails.logger.warn("[Sessions::Stop] YouTube complete: #{e.message}")
+    end
   end
 end

backend/app/services/youtube/broadcast_service.rb

@@ -50,10 +50,11 @@ module Youtube
     end
 
     def complete_broadcast!(broadcast_id)
+      return if broadcast_id.blank?
       return if @credential.blank? || missing_oauth_config?
 
       client = authorized_client
-      client.transition_live_broadcast(broadcast_id, "complete")
+      client.transition_live_broadcast("complete", broadcast_id, "id,status")
     rescue Google::Apis::Error
       nil
     end