vitest-config

Vitest configuration template and validation logic for test configuration that merges with vite.config.ts. Includes 5 required standards (must merge with vite.config using mergeConfig, required test configuration with globals and jsdom environment, required setup file at src/test/setup.ts with @testing-library/jest-dom, required dependencies, required npm test scripts). Use when creating or auditing vitest.config.ts files to ensure proper test environment setup.

// tip: Run this command in your terminal to install the skill