Sync Yield from Intelligence Flow @ 4446951aa6a0

[operator-stack-publisher]

What this sync releases

One package per language

• Install one TypeScript, Python, Go, or Rust package to get both the SDK and
  the matching yskill runtime.
• Add yskill --version, yskill version, and language-aware yskill init
  scaffolds pinned to the installed version.
• Carry immutable Go runtimes for macOS, Linux, and Windows on amd64 and arm64.
• Fail clearly on unsupported or incomplete installations. The wrappers never
  download another runtime or search PATH.
• Verify the package launchers, runtime checksums, and shared IR behavior before
  publishing the public packages.

Projection provenance

Generated from operatorstack/intelligence-flow@4446951aa6a0e3a4fd64fefffacadb8b43252ffa.
Review provenance, tests, and examples before merging.