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 ],
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 ],
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 ],
 "all_refined_nodes_single_plate": "P10",
 "construction_ready": false,
 "physical_fit_verified": false,
 "structural_capacity_verified": false,
 "limitations": [
  "Optimization is a feasible local class-merging search, not a proof of the global minimum number of types.",
  "End interchangeability retains the outside/top edge; top and bottom are not interchangeable.",
  "Moving stay axes shortens the local bending lever; equal bolt force and washer area still give the same average bearing pressure.",
  "No prior strength report is valid for this changed topology without recalculation; neither plywood properties nor actual screw preload are measured."
 ]
}