Add MITC4 drilling diagnostics output and comparison contract

tests/reference/mitc4_reference_comparison.cpp

@@ -26,6 +26,8 @@
 
 #include "reference_tolerance_policy.h"
 
+#include "mitc4_drilling_reader.h"
+
 namespace fesa::test {
 namespace {
 
@@ -573,6 +575,7 @@ std::vector<double> ReadDisplacement(const hid_t file,
 }
 
 struct Hdf5Projection {
+  std::optional<Mitc4DrillingDiagnosticsReport> drilling_diagnostics;
   std::vector<WideRow> rows;
   std::string source_element_type;
   std::string internal_formulation;
@@ -619,7 +622,7 @@ Hdf5Projection ReadHdf5(const Mitc4ReferenceCase& reference_case) {
         values.begin() + static_cast<std::ptrdiff_t>(row * kComponents.size()),
         kComponents.size(), rows[row].values.begin());
   }
-  return {std::move(rows), reference_case.expected_source_element_type,
+  return {ReadMitc4DrillingReport(file.Get()), std::move(rows), reference_case.expected_source_element_type,
           kInternalFormulation, kIntegrationRule};
 }
 
@@ -739,6 +742,7 @@ Result<Mitc4ComparisonReport> Mitc4ReferenceComparison::Compare(
     }
 
     Mitc4ComparisonReport report{};
+    report.drilling_diagnostics = std::move(hdf5.drilling_diagnostics);
     report.case_id = reference_case.case_id;
     report.source_element_type = std::move(hdf5.source_element_type);
     report.internal_formulation = std::move(hdf5.internal_formulation);
@@ -889,7 +893,9 @@ Status Mitc4ReferenceComparison::WriteDeterministicJson(
     }
     stream.imbue(std::locale::classic());
     stream << std::setprecision(std::numeric_limits<double>::max_digits10);
-    stream << "{\"case_id\":\"" << JsonEscape(report.case_id)
+    stream << "{\"drilling_diagnostics\":";
+    WriteDrillingDiagnosticsJson(stream, report.drilling_diagnostics);
+    stream << ",\"case_id\":\"" << JsonEscape(report.case_id)
            << "\",\"source_element_type\":\""
            << JsonEscape(report.source_element_type)
            << "\",\"internal_formulation\":\""