test(auth): pin the browser session contract, and gate the deploy

• e499517a39 test(auth): pin the browser session contract glennmichael123 review this step
• c7ab74d826 ci(deploy): gate production on the test suite glennmichael123 review this step
• 12cbd36562 test(deploy): smoke a real sign-in against production glennmichael123 review this step