Release v0.27.0

What's Changed

• feat(models): add MiniMax M3 by @overlord-letta in #2665
• feat(settings): add shared conversation pins by @kianjones9 in #2624
• feat(cli): add conversation pin and resume selector UX by @kianjones9 in #2626
• feat(settings): make conversation titles a default setting by @kianjones9 in #2674
• chore(tools): align Codex schema descriptions by @kl2806 in #2675
• chore: bump version to 0.27.0 by @kianjones9 in #2676

Full Changelog: v0.26.9...v0.27.0