feat: extend FreeCAD parity queue and pair diagnostics

config/freecad-follow-up-task-progress.json

@@ -0,0 +1,12 @@
+{
+  "schemaVersion": 1,
+  "baseline": {
+    "freecadVersion": "1.1.1",
+    "commit": "0108fd4b4850cc46e625b60e53cea7a7bbe69f8d"
+  },
+  "policy": {
+    "ordering": "completed task IDs must form a contiguous prefix of the generated follow-up queue",
+    "evidence": "every completed task must name at least one machine-checkable artifact or focused check"
+  },
+  "completedTasks": []
+}