• Fix incorrect display of key list usage status
• Restore last_used_at field and sort by last used
• Optimize key list query performance

What's Changed

• fix: Keep key last_used_at accurate and group-scoped by @tbphp in https://github.com/tbphp/gpt-load/pull/383

Full Changelog: https://github.com/tbphp/gpt-load/compare/v1.4.2...v1.4.3