Release v0.24.0

What's Changed

• feat(reflection): always use letta/auto-memory for reflection subagents by @cpacker in #1888
• fix(permissions): reuse shell analysis for repeated Bash approval rules by @cpacker in #1892
• feat(channels): optional inbound debounce for Slack messages by @cpacker in #1891
• docs: update readme by @cpacker in #1890
• fix(channels): support proactive Slack MessageChannel targets by @cpacker in #1889
• feat(skills): add modifying-letta-code skill by @sarahwooders in #1887
• fix(channels): scope proactive MessageChannel targets to Slack routes by @cpacker in #1898
• chore(subagents): remove built-in explore subagent by @sarahwooders in #1896
• fix(channels): post Slack lifecycle errors in-thread by @cpacker in #1893
• feat: add GPT-5.5 ChatGPT BYOK models by @sarahwooders in #1901
• fix(permissions): auto-approve safe git grep commands by @cpacker in #1900
• feat(memfs): /memory-repository — push agent memory to an additional git remote by @sarahwooders in #1899
• revert(cli): remove approval draft preservation by @cpacker in #1905
• fix(tests): wait for memory-repository hook completion by @cpacker in #1904
• fix(cli): remove periodic memory sync reminder injection by @cpacker in #1910
• feat: clean up telem by @AriWebb in #1897
• fix(memfs): clear stale origin pushurl during memory remote repair by @sarahwooders in #1908
• fix(cli): normalize outgoing base64 image media types by @cpacker in #1909
• fix(reflection): store payload snapshots under the transcript root by @cpacker in #1912
• chore: bump version to 0.24.0 by @github-actions[bot] in #1913

Full Changelog: v0.23.11...v0.24.0