App ecosystem: inline document preview inside record pages (DocumentViewer is modal-only)

Use case We're building an ATS as a Twenty App. A recruiter needs to read a candidate's CV (PDF) while taking notes and running actions on the same record page — i.e. the document must be visible *inline and persistent*, side-by-side with the record, not in a blocking overlay. What already exists Twenty ships a capable host-side DocumentViewer (@cyntler/react-doc-viewer, PDF + ~11 formats). But it's only reachable through GlobalFilePreviewModal — clicking a file opens a modal, which blocks interaction with the record underneath. There's no native way to embed that viewer *inline* in a record page. The gap for App builders The natural place to put an inline viewer from an App is a FrontComponent, but the Remote DOM sandbox (correctly) forces sandbox on the FC iframe, and in our testing Chrome's native PDF viewer refuses to initialize inside any sandboxed iframe — so a real PDF can't render inside an FC. Today the only inline workaround is rasterizing …