curl --request POST \
  --url https://app.dimred.com/api/v1/metrics \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '{
  "project_id": "proj_abc123",
  "code": "def metric_func(output, expected):\n    return 1.0 if output == expected else 0.0",
  "metric_name": "Exact Match",
  "metric_description": "Checks if output exactly matches expected"
}'

{
  "metric_id": "<string>",
  "metric_name": "<string>",
  "metric_description": "<string>",
  "metric_definition": "<string>",
  "storage_type": "inline",
  "status": "<string>",
  "message": "<string>",
  "validation": {
    "valid": true,
    "has_metric_func": true,
    "has_imports": true,
    "function_signature": "<string>",
    "error": "<string>"
  },
  "metadata_auto_generated": true,
  "creation_method": "auto_selection"
}