Add 6 TTS providers (Nvidia NIM, ElevenLabs, HuggingFace, Coqui, Tortoise,
Qwen3), 3 STT providers (Nvidia NIM, HuggingFace, Qwen3), 2 local image
providers (SD WebUI, ComfyUI), and two new modalities — Text-to-Video
(/v1/videos/generations) and Text-to-Music (/v1/music/generations).
Key design decisions:
- Format-based unified providers: local providers grouped by API format
(comfyui, sdwebui, coqui, tortoise, openai-compatible) with configurable
base URLs and expandable model lists
- Cloud providers kept separate (unique auth and API shapes)
- Local providers use authType: "none" — credential checks bypassed at both
route and handler level
- Shared ComfyUI client (comfyuiClient.ts) reused across image/video/music
- Shared registry utilities (registryUtils.ts) for model parsing and listing
- Qwen3 TTS/ASR use format: "openai" — no custom handler needed
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
