API: simba-3.2 voice cloning enters limited release

Cloned (personal) voices now synthesize on simba-3.2 for workspaces enabled for it, with no per-voice step. The earlier per-voice-key approval is gone: enablement is per workspace, and once yours is on, every clone you own works there. Contact us to be enabled.

Nothing else changes. The request and response are identical to a stock-voice call, and simba-3.2 remains English only, so a cloned voice with a non-English locale still returns 400 — use simba-3.0 for those. GET /v1/voices names simba-3.2 on your cloned voices once your workspace is enabled, so drive a picker off each voice’s models array rather than assuming. Cloning on simba-3.0, simba-english and simba-multilingual is unchanged.