Implement WebAssembly runtime and kinematics coverage

scripts/test_kinematics_numeric_policy.py

@@ -0,0 +1,18 @@
+import json
+import unittest
+from pathlib import Path
+
+
+class KinematicsNumericPolicyTests(unittest.TestCase):
+    def test_policy_is_verified_and_exact_fields_are_declared(self):
+        root = Path(__file__).resolve().parents[1]
+        report = json.loads((root / "coverage/kinematics-numeric-policy.json").read_text(encoding="utf-8"))
+        self.assertEqual(report["schema"], "kinematics-numeric-policy.v1")
+        self.assertEqual(report["status"], "verified")
+        self.assertFalse(report["compiler"]["fast_math"])
+        self.assertIn("SIM_KIN_ERR_SINGULAR", {row["expected"] for row in report["boundary_matrix"]})
+        self.assertIn("branch_id", report["exact_fields"])
+
+
+if __name__ == "__main__":
+    unittest.main()