Add reviewer overview figure, drop duplicate training SVGs, sync Hub showcase

Shorten Hub dataset notes in README, Blog, and Hub README

Tone down Hub dataset copy: neutral navigation, no trashing own plots

Hub dataset: root README with viewer disabled; document in README and Blog

Refresh plots, showcase upload script, and docs for Hub results

Update README.md

submission: Membrane docs, training/eval artifacts, HF jobs scripts; docs plots as SVG only (HF Space git binary hook)

Harden JSONL replay for GRPO: strip invalid surfaces, catch errors; Colab long-run/Drive; test bad surface

Fix Space README: use pictographic emoji for HF YAML validation

Merge origin/main: resolve README conflict, keep Membrane copy and HF frontmatter

Add HF LFS gitattributes and Space README frontmatter

Initial Membrane Space layout

initial commit