[snkmcb]

Summary

• Prepare v0.6.0 for production import hardening and align the release plan with the active roadmap.
• Verify product installation, prefix replacement, and removal with the packaged PLY, SPZ, and SOG fixtures.
• Fix a Windows SOG crash reproduced with optimized MSVC 19.51 C++20 builds.
• Document import diagnostics and headless USD validation.

Verification

• Local Windows OpenUSD 26.08 and OpenStrata 0.23.20 passed the source and package-origin L5 checks and the aggregate installation test.
• Two packagings of the same Windows build produced identical digests.
• The release dry run will exercise the updated packaging workflow on Windows, macOS, and Linux before tagging.