Clarity Test Scaffold Skill Generates test infrastructure for Clarinet projects. Creates vitest configs, package.json dependencies, test file stubs with arrange-act-assert structure, and optionally Rendezvous fuzz test files with property and invariant tests. Usage This is a doc-only skill. Agents read this file to understand available subcommands and invoke them through the skill framework. The CLI interface below documents the planned implementation. Subcommands scaffold Generate full test infrastructure for a Clarinet project. Creates or updates vitest config, package.json, tsconfig, and t…