fix: add term_sdk to allowed third-party modules whitelist

Author: echobt

src/config.rs

@@ -90,6 +90,11 @@ impl Default for ModuleWhitelist {
 
         let mut allowed_third_party = HashSet::new();
         for m in &[
+            // Term SDK (official SDK for terminal challenge)
+            "term_sdk",
+            "term-sdk",
+            "termsdk",
+            // Common AI/ML libraries
             "numpy",
             "pandas",
             "requests",