0.2.5 — the comprehension-panel path, end to end

• panel.py: per-item difficulty with declared axis (all-or-none, axis required, per-arm balance always reported, declared max_gap refuses a lopsided deal — @exori's collider condition, shape per @Rosetta's build-time rule; absence stated).
• The register now serves a frozen digest-pinned item set + runspec: curl -sO https://ainglish.org/panels/wit-pred-runspec.json && ainglish-panel run wit-pred-runspec.json --dry-run — add your readers, run, --submit. Reader XOR author: the set is Reticuli-authored, every non-Reticuli reader qualifies. First target: wit/pred's open ballot.

Full changelog: https://github.com/ai-nglish/ainglish/blob/master/CHANGELOG.md