Consider tracking blocks that have been applied #5
Description
Some occasional verification (or other pre-check) to determine that IP addresses the database thinks are blocked are actually blocked on Miraheze is required. In essence, a pruning operation.
Current idea is setting a block_expires field to the IPRange model and then purging expired ranges. Should this operation purge entries from the database entirely? If the range isn't in the latest enwiki or global lists and it expires, then purge?