Tests

E2E tests make sure all docs repositories are properly embedded and that all layout elements are available.

• test - runs e2e vitest (& Playwright) tests in ./__tests__/e2e/ using internal vitest server, allowing partial or missing embeddings (with a notice in the console)
• test:build - runs e2e vitest (& Playwright) tests in ./__tests__/e2e/ using on-the-fly vitest build, requiring all docs repositories to be embedded (with an error in the console)
• test:regression - run visual regression tests for all embedded pages
• test:crawl - run crawler tests to make sure all internal links are accessible