fix(pathways): chapter-click confirm popup + mobile slide-text default

fix(pathways): re-render chapter list when furthest-slide marker advances

fix(pathways): course picker becomes a modal dialog

fix(home): repurpose Guided Pathways card as Resume entry

fix(pathways): per-chapter furthest-slide marker on chapter cards

fix(pathways): drop "Rendering slide visual…" loading flicker

fix(pathways): duplicate Prev/Next at the bottom of the slide

fix(pathways): kill slide-0 intro state, land on real first slide

feat(space): convert HF Space from Gradio SDK to Docker SDK

security(frontend): XSS hardening, prototype-pollution armor, offline assets, lint, a11y

Prepare for open source release v1.0.0