Add Synergy Inspector tab: leader-anchored recs with color legality + family bonus

UI: header stats, instructions accordion, tabs, examples, about footer

Reframe short_description: applied experimentation language

Drop umap_plot.select handler: gr.Plot in Gradio 5 only exposes 'change'

Bump Gradio to 5.x: 4.44.0 imports HfFolder which hub>=0.30 removed

Pin Python 3.12: Gradio's pydub dep can't import on 3.13 (stdlib audioop removed)

Merge HF Space scaffold (.gitattributes)

initial commit

Initial commit: optcg-explorer Gradio Space