## What changed
- Publish `install.sh` and `install.ps1` from stable release assets to the
mutable `codex/install.sh` and `codex/install.ps1` R2 keys.
- Require both installer assets and verify each uploaded object's size,
SHA-256 metadata, and CRC64 checksum before completing publication.
- Leave prerelease publication unchanged.
GitOrigin-RevId: 869f5fcd6c5f5d7fa4dc39c5216b31409d595fc9