feat: add Hydrotech Beam DOE landscape results (39 iterations)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

projects/hydrotech-beam/studies/01_doe_landscape/results/doe_summary.json

@@ -0,0 +1,64 @@
+{
+  "study_name": "hydrotech_beam_doe_phase1",
+  "phase": "Phase 1 \u2014 LHS DoE",
+  "project": "Hydrotech Beam Structural Optimization",
+  "timestamp": "2026-02-11T16:40:12.707007+00:00",
+  "configuration": {
+    "n_lhs_samples": 50,
+    "seed": 42,
+    "baseline_included": true,
+    "algorithm": "Latin Hypercube Sampling (scipy.stats.qmc)",
+    "constraint_handling": "Deb's feasibility rules",
+    "displacement_limit_mm": 10.0,
+    "stress_limit_MPa": 130.0
+  },
+  "design_variables": [
+    {
+      "name": "beam_half_core_thickness",
+      "nx_expression": "beam_half_core_thickness",
+      "lower": 10.0,
+      "upper": 40.0,
+      "baseline": 25.162,
+      "type": "continuous"
+    },
+    {
+      "name": "beam_face_thickness",
+      "nx_expression": "beam_face_thickness",
+      "lower": 10.0,
+      "upper": 40.0,
+      "baseline": 21.504,
+      "type": "continuous"
+    },
+    {
+      "name": "holes_diameter",
+      "nx_expression": "holes_diameter",
+      "lower": 150.0,
+      "upper": 450.0,
+      "baseline": 300.0,
+      "type": "continuous"
+    },
+    {
+      "name": "hole_count",
+      "nx_expression": "hole_count",
+      "lower": 5.0,
+      "upper": 15.0,
+      "baseline": 10.0,
+      "type": "integer"
+    }
+  ],
+  "results": {
+    "total_trials": 51,
+    "solved": 39,
+    "geo_infeasible": 12,
+    "solve_failed": 0,
+    "fully_feasible": 0,
+    "solve_success_rate": 76.5,
+    "feasibility_rate": 0.0
+  },
+  "best_feasible": null,
+  "phase1_gate_check": {
+    "min_feasible_5": false,
+    "solve_success_80pct": false,
+    "gate_passed": false
+  }
+}