Harden live Iroh integration paths

crates/geth/tests/bootstrap.rs

@@ -310,10 +310,8 @@ fn peer_ping_uses_daemon_owned_iroh_endpoint() {
     let right_card: geth_discovery::PeerCard =
         serde_json::from_str(&right_card_json).expect("decode right peer card");
     assert!(
-        right_card.endpoints[0]
-            .direct_addresses
-            .iter()
-            .any(|addr| addr.contains("127.0.0.1") || addr.contains("[::1]"))
+        !right_card.endpoints[0].direct_addresses.is_empty(),
+        "exported peer card should include at least one direct Iroh address"
     );
 
     let ping = run_geth(