🌿 Fern Regeneration -- March 30, 2026

[fern-api]

This PR regenerates code to match the latest API Definition.

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Note

Low Risk
Mostly auto-generated metadata/docs updates plus minor dependency/version bumps; no hand-written runtime logic changes are evident in the diff.

Overview
Updates the generated SDK artifacts to match the latest API definition.

This bumps the package version to v2.42.0, increases Fern generator recursion_limit to 10000, and updates the tomli lockfile entry to 2.4.1.

The large reference.md regeneration refreshes and reorders the API reference, including the client.music surface (compose, compose_detailed, stream, upload) and new/updated parameters in the conversational AI docs (e.g., workflow expression node types and message search sort_by, plus additional optional fields like branch_id/environment).

^{Written by Cursor Bugbot for commit 1d9a6e5. This will update automatically on new commits. Configure here.}

[kraenhansen]

Will do another as soon as the backend has deployed the Open-API spec and DX repo has pulled it in.