Tighten prompt_template_source.notes: explicit 5-tier classification per 2026-06-01 priority rules

metadata.json

@@ -35,7 +35,7 @@
       "prompt_template_source": {
         "origin": "official",
         "reference": "https://github.com/open-compass/VLMEvalKit/blob/main/vlmeval/dataset/image_vqa.py (WildVision-Bench — judge-scored; bare question)",
-        "notes": "WildVision-Bench judge-scored eval: bare question per the official WildVision-Bench paper."
+        "notes": "Tier 3: WildVision-Bench judge-scored eval: bare question per the official WildVision-Bench paper."
       }
     }
   }