Integrate Refactor solver sources and dual MSVC CMake builds

src/fesa/analysis/hht_dynamic_internal.h

@@ -4,11 +4,13 @@
 #include <array>
 #include <cstdint>
 #include <filesystem>
+#include <memory>
 #include <optional>
 #include <vector>
 
 #include "fesa/analysis/dynamic_analysis_state.h"
 #include "fesa/analysis/hht_time_integration.h"
+#include "fesa/elements/element_capabilities.h"
 #include "fesa/elements/nonlinear_mitc4_inertia.h"
 #include "fesa/elements/nonlinear_mitc4_shell.h"
 #include "fesa/math/sparse_matrix.h"
@@ -25,8 +27,10 @@ namespace hht_internal {
 struct RuntimeShell {
   EntityIndex element_index;
   std::array<std::size_t, 24> scatter;
-  NonlinearMitc4Shell internal;
-  NonlinearMitc4Inertia inertia;
+  std::unique_ptr<NonlinearMitc4Shell> internal_kernel;
+  std::unique_ptr<NonlinearMitc4Inertia> inertia_kernel;
+  std::unique_ptr<ShellTrialElement> internal;
+  std::unique_ptr<ShellInertiaElement> inertia;
 };
 
 /// @brief Captures only controls used by the current MSVC x64 local evaluator.
@@ -138,6 +142,12 @@ Result<SparseMatrix> ScaledFree(const SparseMatrix& matrix,
 Status CheckLinearSolve(const SparseMatrix& matrix, const Vector& rhs,
                         const Vector& solution);
 
+/// @brief Streams checked canonical solves into the caller's infinity norm.
+/// @note The caller owns factorization and the initial norm. Each column is
+/// discarded after ascending absolute row-sum accumulation; failures preserve norm.
+Status AccumulateCheckedCanonicalNorm(const SparseMatrix& matrix,
+                                      TangentSolver& solver, double& norm);
+
 /// @brief Finds analytic admissible node null directions without rank cuts.
 std::vector<std::size_t> NullNodes(
     const DofManager& dofs,