feat(editor): Embed Studio button in the top bar

feat(auth): surface canEdit in the topbar with an access badge

feat(embed-studio): clickable chart list to switch files

feat(demo): full showcase polish - mouse cursor, robust selection, HF affiliations

fix(ui,publisher): kill theme/color flickers and translation prompts

feat(frontend): editor refresh (embed studio, comment popover, shiki, top bar, hooks, styles)

refactor: remove MUI, unify publisher pipeline, add shared component registry

feat: show real HF username and avatar for connected users

feat: adopt template CSS architecture, hero/TOC/color alignment

refactor: rename to Science Article Template Editor, remove MDX export, fix settings drawer

refactor: remove doc URL parameter, single document per Space

fix: auth flow for publish and write access check

feat: add publish button with confirmation dialog

chore: initial commit