updated test and fixed rpc error

.gitignore

@@ -3,6 +3,7 @@
 debug/
 target/
 .vscode/
+test_images/
 
 # These are backup files generated by rustfmt
 **/*.rs.bk

src/rpc.rs

@@ -71,7 +71,7 @@ pub fn hash_key(key: &str) -> String {
 }
 
 /// RPC trait for HeroDB management
-#[rpc(server, client, namespace = "herodb")]
+#[rpc(server, client, namespace = "hero")]
 pub trait Rpc {
     /// Create a new database with specified configuration
     #[method(name = "createDatabase")]

tests/lance_integration_tests.rs

@@ -116,7 +116,7 @@ async fn setup_server() -> (ServerProcessGuard, u16) {
 
     // Give the server time to build and start (cargo run may compile first)
     // Increase significantly to accommodate first-time dependency compilation in CI.
-    std::thread::sleep(Duration::from_millis(60000));
+    std::thread::sleep(Duration::from_millis(5000));
 
     (guard, port)
 }