Integrate Refactor solver sources and dual MSVC CMake builds

include/fesa/elements/element_factory.h

@@ -5,6 +5,7 @@
 
 #include "fesa/core/status.h"
 #include "fesa/elements/element.h"
+#include "fesa/elements/element_capabilities.h"
 
 namespace fesa {
 
@@ -21,6 +22,14 @@ class ElementFactory {
   Result<std::unique_ptr<Element>> Create(const ElementDefinition& definition,
                                           const Domain& domain) const;
 
+  /// @brief Binds a typed view of an existing stable runtime kernel.
+  /// @note Returns null for a different family. The kernel must outlive the
+  /// returned adapter and remain at its address; no second kernel is created.
+  std::unique_ptr<SolidTrialElement> BindSolidTrial(const Element& kernel) const;
+  /// @copydoc BindSolidTrial
+  std::unique_ptr<ShellReferenceElement> BindShellReference(
+      const Element& kernel) const;
+
  private:
   /// @brief Creates one checked B33 runtime candidate.
   Result<std::unique_ptr<Element>> CreateBeam(