tests: Improve e2e auth test coverage

examples/performance_benchmark.rs

@@ -98,7 +98,7 @@ fn format_duration(d: Duration) -> String {
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
     // Load environment variables from .env file
-    dotenv::dotenv().ok();
+    dotenvy::dotenv().ok();
 
     println!("🚀 Real-World Polymarket Performance Benchmark");
     println!("==============================================");