fix: decimal -> percent points in IpaziaHPA

results/IpaziaHPA-Gemini-3-flash-preview/workarena-l1.json

@@ -4,8 +4,8 @@
         "study_id": "2026-03-07_00-38-28", 
         "date_time": "2026-03-07 00:38:00",
         "benchmark": "WorkArena-L1",
-        "score": 0.903,
-        "std_err": 0.016,
+        "score": 90.3,
+        "std_err": 1.6,
         "benchmark_specific": "No",
         "benchmark_tuned": "No",
         "followed_evaluation_protocol": "No",