Debug-Locale-Decimal-Sort-V2

The model receives the prompt (and optional system message). The run uses scorer rubric_json_metrics with the JSON configuration below. Pass/fail and partial credit are determined entirely by that scorer against the model output; no human grading.

Return JSON only with keys diagnosis, fix, tests. A report sorter parses localized decimal strings with parseFloat, so "9,8" becomes 9 and ranks incorrectly. Identify the bug and fix.

{
  "metrics": {
    "repro": {
      "checks": [
        {
          "contains": [
            "localized"
          ]
        },
        {
          "contains": [
            "9,8"
          ]
        },
        {
          "contains": [
            "parseFloat"
          ]
        },
        {
          "contains": [
            "rank"
          ]
        }
      ]
    },
    "hidden": {
      "checks": [
        {
          "contains": [
            "locale aware"
          ]
        },
        {
          "contains": [
            "numeric value"
          ]
        },
        {
          "contains": [
            "Intl"
          ]
        }
      ]
    },
    "diagnose": {
      "checks": [
        {
          "contains": [
            "decimal"
          ]
        },
        {
          "contains": [
            "sorter"
          ]
        },
        {
          "contains": [
            "comma"
          ]
        }
      ]
    }
  }
}