{
  "report_id": "report-77d96a9c-b260-4ae8-b3e8-444604bf75f8",
  "timestamp": "2026-04-14T16:53:16.938055+00:00",
  "source_trajectory_ids": [
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    "avg_latency_ms": 0.0
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  "challenger_metrics": {
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  },
  "promotion_decision": {
    "accepted": false,
    "reasons": [
      "Reward delta 0.0000 below minimum 1.0"
    ],
    "metrics": {
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      "challenger_avg_reward": 0.44
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  "promoted_version_id": null
}