[
  {
    "_note": "img+cd ensemble with ConcatBridge — 2-stream variant of the concat experiment. 3 reps.",
    "run_name": "experiments/tri_v1/altbridge/ensemble_concat",
    "reps": 3,
    "stage_overrides": {
      "nt": {
        "module": "v4.classes.bridges.concat_bridge",
        "class":  "ConcatBridge",
        "args":   { "fusion_dim": 256 }
      }
    }
  }
]