fix: sync config/app.yaml from main (add SphereGlue + LISRD entries)

chore: bump imcui to 0.1.3

chore: update README metadata for HF Space

fix: switch back to Gradio SDK with python_version 3.12

chore: bump imcui to 0.1.1 (ZeroGPU support)

fix: use full app.yaml from main branch

fix: add missing retrieval_zoo section to config

fix: switch to Docker SDK with Python 3.12

fix: correct gradio sdk_version to 6.19.0

feat: lightweight HF Space deployment branch