Refactor-String-Contact-Card

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 refactor, rationale, tests. Refactor string concatenation that builds a contact card into clearer template literal or array join code without changing whitespace.

{
  "metrics": {
    "visible": {
      "checks": [
        {
          "contains": [
            "template literal"
          ]
        },
        {
          "contains": [
            "contact card"
          ]
        },
        {
          "contains": [
            "whitespace"
          ]
        }
      ]
    },
    "hidden": {
      "checks": [
        {
          "contains": [
            "array join"
          ]
        },
        {
          "contains": [
            "same output"
          ]
        },
        {
          "contains": [
            "snapshot"
          ]
        }
      ]
    },
    "intent": {
      "checks": [
        {
          "contains": [
            "modernize"
          ]
        },
        {
          "contains": [
            "string concatenation"
          ]
        },
        {
          "contains": [
            "readability"
          ]
        }
      ]
    }
  }
}