* fix: standardize URL formatting in insomnia test files
* feat: add mix router for handling custom redirects and cookies
* fix: add validation for redirect count to prevent infinite loops
* fix: update test URLs to use local server and add query parameters for improved testing
* fix: update test URLs from httpbin to echo.usebruno.com across multiple test files
* fix: standardize URL formatting in insomnia test files
* chore: standardize URL formatting in insomnia test files