{
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  "kind": "campaign",
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  "seed": 42,
  "data": { "instruments": ["EURUSD"], "windows": [ { "from_ms": 1704067200000, "to_ms": 1711929600000 } ] },
  "strategies": [
    {
      "ref": {},
      "axes": {
        "fast.length": { "kind": "I64", "values": [4, 8, 12] }
      }
    }
  ],
  "process": { "ref": {} },
  "presentation": { "persist_taps": ["bias"], "emit": ["family_table"] }
}
