Tontester contracts

[yungwine]

No description provided.

[github-actions]

I can’t perform this review yet because this session can’t execute git commands (sandbox runtime error: bwrap: loopback: Failed RTM_NEWADDR: Operation not permitted), and direct fetch of the specific commit/PR diff is also unavailable here.

Please provide one of these, and I’ll return a concise, line-specific review immediately:

1. git diff --unified=3 93c0d83051358a555305f3d0b94e9cf04cfd4761...3906de1d509fe9a94ee702753c7446daf7896da7
2. Or the changed files as patch text (git show <commit> for each commit in the range).