{
  "project": "FESA",
  "phase": "deterministic-parallel-assembly",
  "steps": [
    {
      "step": 0,
      "name": "canonical-contribution-order",
      "status": "completed",
      "summary": "Added canonical MatrixContribution ordering and deterministic upper-triangle CSR merge with bitwise permutation, cancellation, signed-zero, and serial-oracle coverage.",
      "started_at": "2026-08-01T22:17:55+0900",
      "completed_at": "2026-08-01T23:06:21+0900"
    },
    {
      "step": 1,
      "name": "tbb-element-evaluation",
      "status": "completed",
      "summary": "Added AssemblyOptions and oneTBB Beam element evaluation with element-local contributions, canonical serial merge, explicit execution limits, and bitwise serial parity tests.",
      "started_at": "2026-08-01T23:06:22+0900",
      "completed_at": "2026-08-01T23:21:27+0900"
    },
    {
      "step": 2,
      "name": "thread-count-determinism",
      "status": "completed",
      "summary": "Added 10-run bitwise CSR, RHS, displacement, and reaction checks at 1, 2, and 16 threads plus a production serial/parallel assembly benchmark.",
      "started_at": "2026-08-01T23:21:27+0900",
      "completed_at": "2026-08-01T23:36:17+0900"
    }
  ],
  "created_at": "2026-08-01T22:17:55+0900",
  "completed_at": "2026-08-01T23:36:18+0900"
}