itsdillon readmewriter-example .cursorrules file for TypeScript

1. Use Hono for server framework
2. Use Bun for bundling and runtime
3. Use TypeScript for type safety
4. Name files and exports with camelCase
5. Structure code into small, focused modules
6. Export a default App instance from entry point 
7. Use c.text() and c.json() for route handlers
8. Put shared helpers in /lib folder
9. Configure compilerOptions for JSX and modules
10. Use npm scripts for build and dev workflows
11. Keep dependencies minimal
12. Write small, pure functions where possible
13. Favor descriptive variable and function names
14. Format code consistently with Prettier
15. Add runtime validation with zod or io-ts
16. Write tests with Vitest 
17. Measure perf with Bun's built-in profiling