Add html-react-parser-backed RichText component that converts HTML
strings from PocketBase rich-text fields into React elements without
dangerouslySetInnerHTML. Replace raw <p> render in IntroSection and
BioSection, and drop the invalid slug filters those collections lacked.
Installs @storybook/nextjs-vite. Stories co-located with components,
grouped by layer (Shared/Entities/Widgets). Multi-variant cases use
render functions instead of one story per variant/size.
Ilia Mashkov