Buffaly mac prerelease 20260617-182157

Buffaly mac prerelease package refreshed from current staging. Built through the provisioning-owned Mac package builder. Minimal package validation passed: manifest, checksum, install/upgrade scripts, sessions and semantic DB artifacts including vectors, runtime apps, OpsAgent project, and provider modules were present. Full clean/upgrade validation matrix was intentionally not rerun for this mutable prerelease refresh.