refactor(gradio): focus app on structured extraction

perf(zerogpu): use native PyTorch inference

Update Gradio GPU decorator and template controls

Align output tabs with extraction tasks

Show named presets in Gradio examples

Rename Gradio app heading to NuMarkApp

Add bank statement samples and extraction presets

Initialize ZeroGPU before CUDA kernel imports

Add structured receipt extraction outputs and HF launch entrypoint

Add Gradio NuExtract3 extraction app and launcher

Add Ruff development configuration

Refactor application implementation

init