acp: Add support for slash commands (#37304)

Depends on
https://github.com/zed-industries/agent-client-protocol/pull/45

Release Notes:

- N/A

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Co-authored-by: Antonio Scandurra <me@as-cii.com>
Co-authored-by: Agus Zubiaga <agus@zed.dev>
374a8bc4cbBennet Bo Fenner committed on 9/2/2025, 8:48:33 AM· committed by GitHubparentf06be6f
11 files changedLine totals unavailable