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          "iteration": 8,
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        {
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        {
          "iteration": 10,
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        {
          "iteration": 15,
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        {
          "iteration": 20,
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          "iteration": 25,
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          "iteration": 30,
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        {
          "iteration": 35,
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        {
          "iteration": 40,
          "syndrome_weight": 39
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    }
  ],
  "decodes": [],
  "outputs": {
    "ldpc_soft_decode_json": "/decoders/js8_decoder/runtime/ldpc_soft_decode/step33_ldpc_soft_decode.json"
  },
  "warnings": [
    "Step 33 runs a real normalized-min-sum soft LDPC probe against the public (174,91) matrix contract.",
    "This still does not unpack JS8 text or validate CRC/message payloads.",
    "If success is true and syndrome_weight is 0, the next step can unpack the 91-bit message. Otherwise more deinterleaver/order/LLR tuning is required."
  ],
  "next_action": "Upload logs. Next step: if no valid codeword, improve interleaver/order/LLR mapping; if valid, add JS8 message unpack/CRC."
}