test: improve test script with unique names and random ports

- Remove python3 dependency for port selection
- Use RANDOM for port selection in range 20000-30000
- Use unique container names based on PID: grasp-audit-run-294183
- Use unique temp directories: grasp-audit-run-XXXXXXXXXX
- Ensures parallel test runs don't conflict

1 files changed, 2 insertions, 2 deletions

diff --git a/grasp-audit/src/specs/nip01_smoke.rs b/grasp-audit/src/specs/nip01_smoke.rs
index 20f80ea..5fddf5d 100644
--- a/grasp-audit/src/specs/nip01_smoke.rs
+++ b/grasp-audit/src/specs/nip01_smoke.rs
@@ -295,9 +295,9 @@ mod tests {
     #[tokio::test]
     #[ignore] // Ignore by default since it needs a running relay
     async fn test_smoke_tests_against_relay() {
-        // Use RELAY_URL env var if set, otherwise default to localhost:7000
+        // RELAY_URL env var must be set - no default fallback
         let relay_url = std::env::var("RELAY_URL")
-            .unwrap_or_else(|_| "ws://localhost:7000".to_string());
+            .expect("RELAY_URL environment variable must be set for integration tests");
         
         let config = AuditConfig::ci();
         let client = AuditClient::new(&relay_url, config)