Get Voices API-ref: Lightning v3.1 Pro path added to the model dropdown

GET /waves/v1/{model}/get_voices now documents both Lightning v3.1 pools in the path enum:

lightning-v3.1 — returns the Standard voice catalog only.
lightning-v3.1-pro — returns the Pro voice catalog only.

Both routes have been live in production; only the docs were showing a single-value dropdown, so integrators reading the API reference could not see that a per-pool query was possible. The previous description also implied the response was a “union” of both catalogs, which is not what the endpoint returns — each pool’s URL returns only that pool’s voices. Corrected.

The response schema is unchanged. Voice objects still carry voiceId, displayName, and tags (language, accent, gender, age, emotions, usecases). Filter on tags client-side to find voices for a target language, accent, or use case.

For browsing every voice in one call across all models, keep using GET /waves/v1/voice/get-all-models. For the canonical per-language voice list (with previews and recommended pairings), see the Lightning v3.1 and Lightning v3.1 Pro model cards.