Pre-generates TTS audio for the configured inboundGreeting at startup
and serves it instantly when an inbound call connects, eliminating the
500ms+ TTS synthesis delay on the first ring.
Changes:
- twilio.ts: Add cachedGreetingAudio storage with getter/setter
- runtime.ts: Pre-synthesize greeting TTS after provider initialization
- webhook.ts: Play cached audio directly via media stream on inbound
connect, falling back to the original TTS path for outbound calls
or when no cached audio is available
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* TypeScript: add extensions to tsconfig and fix type errors
- Add extensions/**/* to tsconfig.json includes
- Export ProviderAuthResult, AnyAgentTool from plugin-sdk
- Fix optional chaining for messageActions across channels
- Add missing type imports (MSTeamsConfig, GroupPolicy, etc.)
- Add type annotations for provider auth handlers
- Fix undici/fetch type compatibility in zalo proxy
- Correct ChannelAccountSnapshot property usage
- Add type casts for tool registrations
- Extract usage view styles and types to separate files
* TypeScript: fix optional debug calls and handleAction guards