$foliate is a Vite-only alias, deliberately absent from kit.alias and
tsconfig paths: TypeScript cannot resolve it, so the ambient declaration in
src/lib/reader/foliate.d.ts is the only candidate and svelte-check never
walks the ~11k lines of untyped vendored JS. The generated tsconfig includes
src/**/*.js and checkJs is on, so src/lib/vendor is excluded as well —
`exclude` replaces rather than merges, hence the repeated service-worker
entries.
optimizeDeps.include for construct-style-sheets-polyfill: it sits behind a
dynamic import in fixed-layout.js, so Vite would otherwise discover it
mid-session and force a page reload on the first fixed-layout EPUB.
Verified with a temporary import that the graph resolves: view.js and
paginator.js are emitted as chunks, and the bundled pdf.js is our stub
rather than upstream's bare `import '@pdfjs/pdf.min.mjs'`.