v0.74.0

What's Changed

• feat(tools): run_command via /bin/sh -c so shell operators work by @mabry1985 in #1419
• feat(chat): reusable tone-aware system-note type for in-thread notices by @mabry1985 in #1420
• feat(tools): bypass-permissions mode — per-tab auto-approve for run_command by @mabry1985 in #1418

Full Changelog: v0.73.0...v0.74.0