feat(release): publish credible-std ABI artifacts

[odyslam]

Summary

• generate raw ABI arrays for every ABI-bearing contract and interface defined under src/
• publish the generated artifacts/ tree in @phylax-systems/credible-std and attach the same ABIs to GitHub releases
• add PR coverage for artifact generation and npm package contents
• document stable deep-import paths and bump the release version to 0.8.1

Validation

• ./shell/create_artifacts.sh — 63 ABI artifacts
• repeated clean generation produces identical aggregate SHA-256 6e067e0d500da8a4b0447950db0a487f006ae004ba08732d896bba98480ad8e9
• all generated JSON files are non-empty ABI arrays and have unique GitHub release asset names
• npm pack: 63 ABI files, 486 total files, 469,752 bytes compressed
• clean consumer import: PhEvm.json (45 entries) and SafeTxShapeAssertion.json (61 entries)
• actionlint .github/workflows/release.yml .github/workflows/solidity-test.yml
• forge fmt --check
• git diff --check

After merge, tag 0.8.1 will publish the package through the existing npm OIDC trusted publisher.