devil
b51c79e889
next build runs ESLint + full type-check and fails on errors (not just warnings) - the production build was broken. Fixes: unused imports/vars, any-typed diff/preference lookups replaced with the actual union/Record types, ternary-as-statement flagged by no-unused-expressions, unescaped JSX entities, a UserPreferences interface missing two fields the video editor already reads/writes at runtime, and an import of ColumnVisibilityState which @tanstack/react-table does not export (the real name is VisibilityState).