feat: establish reproducible FreeCAD web compatibility baseline

config/qa04-sketch-fuzz-verification.json

@@ -0,0 +1,28 @@
+{
+  "status": "sketch-solver-fuzz-pass",
+  "seed": "0xa5a5f00d",
+  "models": 2000,
+  "solves": 4000,
+  "categories": {
+    "blocked-conflict": 200,
+    "horizontal": 200,
+    "invalid-dimension": 200,
+    "line-circle-tangent": 200,
+    "parallel": 200,
+    "redundant": 200,
+    "reference-distance": 200,
+    "unknown-geometry": 200,
+    "unknown-point": 200,
+    "unsupported-bspline-weight": 200
+  },
+  "statuses": {
+    "solved": 0,
+    "under-constrained": 1000,
+    "conflicting": 200,
+    "invalid": 800
+  },
+  "timing": {
+    "p95Ms": 0.03,
+    "maxMs": 1.012
+  }
+}