fix(statistics): run recalculate independently

app/database/score.py

@@ -537,7 +537,9 @@ def calculate_playtime(score: Score, beatmap_length: int) -> tuple[int, bool]:
         + (score.nsmall_tick_hit or 0)
     )
     total_obj = 0
-    for statistics, count in score.maximum_statistics.items():
+    for statistics, count in (
+        score.maximum_statistics.items() if score.maximum_statistics else {}
+    ):
         if not isinstance(statistics, HitResult):
             statistics = HitResult(statistics)
         if statistics.is_scorable():

app/dependencies/scheduler.py

@@ -10,7 +10,6 @@ scheduler: AsyncIOScheduler | None = None
 def init_scheduler():
     global scheduler
     scheduler = AsyncIOScheduler(timezone=UTC)
-    scheduler.start()
 
 
 def get_scheduler() -> AsyncIOScheduler:
@@ -20,6 +19,12 @@ def get_scheduler() -> AsyncIOScheduler:
     return scheduler  # pyright: ignore[reportReturnType]
 
 
+def start_scheduler():
+    global scheduler
+    if scheduler is not None:
+        scheduler.start()
+
+
 def stop_scheduler():
     global scheduler
     if scheduler: