Migrating Test Frameworks — quiz

A team starts migrating a Cypress JS project to TypeScript. They add a `tsconfig.json` in the `cypress/` directory with Cypress-specific settings. What is the correct next step?

• Rename all spec files from `.cy.js` to `.cy.ts` at once to complete the migration in one pass
• Rename one spec file and one support file to `.ts`, fix type errors, confirm `cypress run` passes, then migrate files incrementally. The Cypress tsconfig also needs `"include": ["**/*.ts"]` to pick up typed files
• Delete the project-root `tsconfig.json` — Cypress uses its own exclusively
• Add `"allowJs": false` immediately to prevent mixing JS and TS spec files