{
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      "target_key": "2026-09-29",
      "message_short": "LOW tier (direct straddle)",
      "message_long": "Accept tier: LOW (DIRECT_STRADDLE_ONLY path)",
      "metrics": {}
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    {
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      "scope": "expiry",
      "severity": "INFO",
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      "target_key": "06-23\u219206-30",
      "message_short": "LOW confidence",
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        "confidence": "LOW"
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    {
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    {
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      "interval_to": "2026-07-28",
      "strike": null,
      "target_key": "06-30\u219207-28",
      "message_short": "LOW confidence",
      "message_long": "Event confidence: LOW (baseline not robust)",
      "metrics": {
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    {
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      "target_key": "07-28\u219209-29",
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      "message_short": "Thin baseline",
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}