opt: request extend task deadline before entering battle loop

module/campaign/campaign_base.py

@@ -136,9 +136,9 @@ class CampaignBase(CampaignUI, Map, AutoSearchCombat):
             self.lv_get()
 
         # Run
+        scheduler_watcher.request_extend_task_deadline()
         for _ in range(20):
             try:
-                scheduler_watcher.request_extend_task_deadline()
                 if not self.map_is_auto_search:
                     self.execute_a_battle()
                 else: