GEDX402 Chat

Multi-model chat completions. POST messages[] and set model to any LLM id from GET /v1/models; dynamic USDC pricing scales with model and token usage. Hero: GET /heroes/chat-completions.

Voice-agent reply turn — low-latency chat after WebSocket ASR flux and smart-turn detection. POST messages[]; synthesize with POST /v1/tts/aura-2-en. Bundle: GET /v1/models?bundle=voice.