The time limit for a curator to act before a bounty expires.
The period that starts when a curator is approved, during which they must execute or
update the bounty via extend_bounty_expiry. If missed, the bounty expires, and the
curator may be slashed. If BlockNumberFor::MAX, bounties stay active indefinitely,
removing the need for extend_bounty_expiry.
The time limit for a curator to act before a bounty expires.
The period that starts when a curator is approved, during which they must execute or update the bounty via
extend_bounty_expiry. If missed, the bounty expires, and the curator may be slashed. IfBlockNumberFor::MAX, bounties stay active indefinitely, removing the need forextend_bounty_expiry.