fix(snapshot): avoid duplicate scheduled balance retry

trex_core/application/snapshot_scheduler.py

@@ -117,15 +117,16 @@ class SnapshotScheduler:
                 _log.exception("snapshot scheduler tick failed")
 
     def _maybe_tick(self) -> None:
-        self._maybe_retry_balance_workers()
         now_kst = self._clock().astimezone(_KST)
         target = datetime.combine(now_kst.date(), self._schedule_kst, tzinfo=_KST)
-        if now_kst < target:
-            return
         last = self._last_fired_date
-        if last is not None and last.date() == now_kst.date():
-            return  # already fired today
-        self.run_once()
+        daily_due = now_kst >= target and (last is None or last.date() != now_kst.date())
+        if daily_due:
+            # The daily pass already invokes every eligible balance worker.
+            # Do not run a due retry first and duplicate the same broker read.
+            self.run_once()
+            return
+        self._maybe_retry_balance_workers()
 
     # ---- entry-allowed gate (REQ-114) ------------------------------------
     def get_entry_allowed(self) -> bool: