add: clear task when no task

alas.py

@@ -8,6 +8,7 @@ from datetime import datetime, timedelta
 import inflection
 from cached_property import cached_property
 
+import scheduler_watcher
 from module.base.decorator import del_cached_property
 from module.config.config import AzurLaneConfig, TaskEnd
 from module.config.deep import deep_get, deep_set
@@ -718,6 +719,7 @@ class AzurLaneAutoScript:
                 release_resources(next_task=task.command)
 
             if task.next_run > datetime.now():
+                scheduler_watcher.no_task()
                 logger.info(f'Wait until {task.next_run} for task `{task.command}`')
                 self.is_first_task = False
                 method = self.config.Optimization_WhenTaskQueueEmpty

scheduler_watcher.py

@@ -107,3 +107,8 @@ class SchedulerWatcher:
 def request_extend_task_deadline():
     ins = SchedulerWatcher.get_instance()
     ins.request_extend_task_deadline()
+
+
+def no_task():
+    ins = SchedulerWatcher.get_instance()
+    ins.no_task()