Use demo.app for FastAPI routes, fix HF Space launch

Remove ZeroGPU, use CPU inference

Connect spaces.GPU to Gradio event for ZeroGPU detection

Fix spaces.GPU: move inference to separate function

Add @spaces.GPU decorator for ZeroGPU

Update torch to 2.11.0 for ZeroGPU compatibility

Fix emoji encoding in README

Fix colorTo in README

Initial HF Space deploy