Hot v2.6.7

What's Changed

• Improve queue wait perf and waiting/execution UI by Curtis Summers (@csummers) in #80
• MCP 2026-07-28 Protocol Support by Curtis Summers (@csummers) in #81
• Fix Windows x64 SQLite illegal instruction crash by Curtis Summers (@csummers) in #82

Full Changelog: v2.6.6...v2.6.7