buildAzureSsml (tts/azure.ts)

Azure TTS adapter building SSML and handling voice catalog.

// Source: https://github.com/moeru-ai/airi | License: MIT | Copyright 2024-PRESENT Neko Ayaka
// Provided via justclaw.it.com; keep this notice with the code.
import type { Voice } from 'unspeech'

import type { TtsAdapter, TtsAdapterContext, TtsInput, TtsResult, TtsVoiceCatalogContext } from './types'

import { createBadRequestError, createInternalError, createServiceUnavailableError } from '@proj-airi/http-error-shared'
import { inferMicrosoftContentType, isMicrosoftVoiceId, resolveMicrosoftOutputFormat } from 'unspeech'

import { listVoicesViaUnSpeech, sendSpeechViaUnSpeech } from './unspeech'

/**
 * Azure Cognitive Services REST adapter.
 *
 * Use when:
 * - The router routes a hosted TTS request to an Azure upstream (e.g.
 *   `https://eastasia.tts.speech.microsoft.com/cognitiveserv

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