feat: implement phone-home debugging for frontend errors

debug: add Gradio version to health and enhance frontend logging

feat: add /api/debug/logs for remote log inspection

fix: refactor image loading to match TraceSceneUI structure using root-relative paths and direct directory mounting

feat: integrate static reference cases and update REST API

Add HF token for ZeroGPU auth

Deploy Chatbot, Animation, and Full TraceScene Application