v0.24.0

What's Changed

• docs(changelog): roll [Unreleased] into 0.24.0
• feat(providers): image content in tool results
• feat(voice): provider-lifecycle control, mid-conversation system prompt, diarization clear_speakers
• fix(realtime-voice): drop trailing transcription quietly on teardown race
• Begin 0.24.0.dev0 development

Full Changelog: v0.23.0...v0.24.0