按 Template 查询 Usage

curl -s -X GET 'https://api.qoder.com/api/v1/forward/usage/templates?start_time=1783267200000&end_time=1784476800000&template_ids=tmpl_123,tmpl_456' \
  -H "Authorization: Bearer $QODER_PAT"

{
  "type": "template_usage.list",
  "start_time": 1783267200000,
  "end_time": 1784476800000,
  "data": [
    {
      "type": "template_usage",
      "template_id": "tmpl_123",
      "active_identities": 8,
      "session_count": 42,
      "duration_seconds": 3600,
      "credits": 12.34
    }
  ]
}