Fix FAIL_TO_PASS/PASS_TO_PASS parsing for SWE-bench Multilingual

SWE-bench Multilingual stores these fields as native lists, while the
original SWE-bench stores them as JSON strings. Handle both types so
the shared SWEBenchLiteAdapter.get_problem_detail() works for all
SWE-bench variants.

adapters/code_editing.py

@@ -57,8 +57,10 @@ class SWEBenchLiteAdapter(DatasetAdapter):
     def get_problem_detail(self, idx: int) -> dict[str, Any]:
         row = self._ds[idx]
         patch = row["patch"]
-        fail_to_pass = json.loads(row["FAIL_TO_PASS"]) if row["FAIL_TO_PASS"] else []
-        pass_to_pass = json.loads(row["PASS_TO_PASS"]) if row["PASS_TO_PASS"] else []
+        raw_f2p = row["FAIL_TO_PASS"]
+        fail_to_pass = raw_f2p if isinstance(raw_f2p, list) else (json.loads(raw_f2p) if raw_f2p else [])
+        raw_p2p = row["PASS_TO_PASS"]
+        pass_to_pass = raw_p2p if isinstance(raw_p2p, list) else (json.loads(raw_p2p) if raw_p2p else [])
         instance_id = row["instance_id"]
         repo = row["repo"]
         base_commit = row.get("base_commit", "")