feat(cpp-object-oriented-modular-refactoring): step 19 - boundary-condition-policy

include/fesa/fem/dof_manager.h

@@ -7,6 +7,7 @@
 #include <vector>
 
 #include "fesa/analysis/analysis_model.h"
+#include "fesa/constraints/boundary_condition.h"
 #include "fesa/elements/element.h"
 #include "fesa/math/vector.h"
 
@@ -39,6 +40,12 @@ class DofManager {
   Status Build(const AnalysisModel& analysis_model,
                const ElementView& elements);
 
+  /// @brief Builds mappings from explicit runtime elements and boundaries.
+  /// @param boundaries Non-owning definitions in stable source order.
+  /// @return Success after atomic replacement or a structured failure.
+  Status Build(const AnalysisModel& analysis_model, const ElementView& elements,
+               const BoundaryConditionView& boundaries);
+
   /// @brief Returns the full node-by-component DOF count.
   std::size_t FullDofCount() const noexcept;
   /// @brief Returns the free-equation count.
@@ -75,7 +82,8 @@ class DofManager {
 
   /// @brief Builds from copied layouts after the caller fixes their order.
   Status BuildLayouts(const AnalysisModel& analysis_model,
-                      const std::vector<ElementDofLayout>& layouts);
+                      const std::vector<ElementDofLayout>& layouts,
+                      const BoundaryConditionView& boundaries);
 
   /// @brief Takes ownership of fully validated stable equation mappings.
   DofManager(std::size_t full_dof_count,