MeshDecompressStagingRelease drives the real VK_EXT_memory_decompression /
GDeflate path on a headless device and asserts the staging is handed to the
deferred-deletion queue (not pinned), the build is validation-clean with
byte-correct decompressed data, and the entry retires only after framesInFlight
frames. Skips the GPU-path assertions when the extension is absent (CPU fallback
never allocates the staging).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
