chore: prepare SDK v0.1.0-alpha.1

[Utilitycoder]

Summary

• record verified Flow contract release provenance
• add reproducible Flow binding generation
• add npm OIDC trusted-publishing workflow

Verification

• Flow contract: 40 tests passed
• SDK: 8 tests passed
• typecheck and build passed
• release workflow YAML validated locally

Summary by CodeRabbit

• New Features

  • Added a streamlined command for generating Flow TypeScript bindings from WebAssembly contracts.
  • Automated package publishing for versioned releases, including prerelease and stable release channels.

• Documentation

  • Expanded Flow binding provenance, verification, and regeneration guidance.
  • Documented release metadata requirements for future binding updates.

• Bug Fixes

  • Generated browser bindings no longer modify the global window.Buffer object.