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Dion Moult
8b8fafa698
Renamed HeadlessSidecarBuilder to SidecarBuilder and reused it for live loads. SceneLoader now constructs one per stream load, forwards meshReady /instanceReady chunks alongside the viewport upload, and finalizes + writes the sidecar at onStreamerFinished — no more GPU readback path via ViewportWindow::snapshotModel (removed). Same code path now produces sidecars for both live loads and the .rdbview offline export. Sidecar use is opt-in per direction via SceneLoader::setShouldReadSidecar and setShouldWriteSidecar; both default off so embedders that don't want caching get a pure-streaming loader. ifcviewer-full and ifcviewer-minimal opt in. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>