Replace Python numerical kernels with native C execution

tests/baselines/simulation/test_mql_8/manifest.json

@@ -3,7 +3,7 @@
   "id": "test_mql_8-progressive-v3",
   "description": "Primary generic-solver regression target for the restored eight-branch inputs aligned to the test_mql AMESim archive, with a short smoke gate before staged extension.",
   "source": {
-    "path": "tests/data/test-mql-8.xml",
+    "path": "tests/baselines/simulation/test_mql_8/sources/test-mql-8.xml",
     "sha256": "0a2d9331df9eb5974daec25a61c1238ba32b1742d933ffc8b16ce316c5627b0b",
     "bytes": 104110,
     "xmlIsAuthoritative": true,
@@ -18,7 +18,7 @@
       "resultPointCount": 1002
     },
     "companionProject": {
-      "path": "tests/data/test-mql-8.json",
+      "path": "tests/baselines/simulation/test_mql_8/sources/test-mql-8.json",
       "sha256": "b44bf540ccd1c293fe2af2b9b9052b540abf83961ad955a0f6a4ab40fbe0bb18",
       "bytes": 272592,
       "executionInput": false
@@ -231,7 +231,7 @@
   },
   "correctness": {
     "status": "complete",
-    "maximumScaledResidual": 1e-7,
+    "maximumScaledResidual": 1e-07,
     "requireFiniteSeries": true,
     "requireStrictlyIncreasingTimes": true,
     "physicalProjectionCategories": [
@@ -242,9 +242,9 @@
       "discreteMode"
     ],
     "stateRelativeTolerance": 0.0002,
-    "stateAbsoluteTolerance": 1e-9,
+    "stateAbsoluteTolerance": 1e-09,
     "checkpointTimeAbsoluteToleranceSeconds": 1e-12,
-    "eventTimeAbsoluteToleranceSeconds": 0.00002,
+    "eventTimeAbsoluteToleranceSeconds": 2e-05,
     "signalEventTimeAbsoluteToleranceSeconds": 1e-12,
     "mechanicalTransitionTimesAvailable": true,
     "physicalBaselineAuthority": "amesim",