Top-level cmake/CMakeLists.txt:328 does an unconditional
find_package(Boost REQUIRED COMPONENTS program_options regex thread
date_time iostreams) before the BUILD_BONSAIVIEWER gate, so we have
to install it on the runner even though IfcViewerWgpu itself doesn't
touch Boost. Removed via task #12 (extract ifcviewer-core) later.
Other unconditional finds in the top-level CMake (manifold,
nlohmann_json, USD, RocksDB, zstd) are already gated on flags that
default to OFF — no action needed for those.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Dion Moult
317dbaa440