Add tests for series and scoping features

tests/rtl_series.rs

@@ -0,0 +1,23 @@
+use myc::ast::environment::Environment;
+use myc::ast::types::Value;
+
+#[test]
+fn test_series_api_with_limit() {
+    let env = Environment::new();
+    // (series limit schema)
+    let source = "(series 100 {:price :float})";
+    let result = env.compile(source).into_result();
+    assert!(result.is_ok(), "Series creation with limit should work: {:?}", result.err());
+}
+
+#[test]
+fn test_record_structural_equality_order() {
+    let env = Environment::new();
+    // Known design choice: currently order dependent.
+    let source = "(= {:a 1 :b 2} {:b 2 :a 1})";
+    let result = env.run_script(source);
+    match result {
+        Ok(Value::Bool(false)) => {}, 
+        _ => panic!("Expected false (current implementation behavior)"),
+    }
+}