Example 1:
Daily limit: 100 merges.
At 6:00 am, you perform 5 merges → 95 merges left.
Those 5 merges will be restored at 6:00 am the next day.
Example 2:
Same day at 7:00 am, you perform 10 merges → 85 merges left.
At 6:00 am the next day, the 5 merges from the previous day are restored → 90 merges available.
At 7:00 am the next day, the 10 merges from the previous day are restored → full limit (100 merges).
