modify documents

docs/ARCHITECTURE.md

@@ -217,6 +217,22 @@ Adapter targets:
 
 This allows test doubles and future dependency replacement without changing solver physics code.
 
+### HDF5 Dependency Discovery
+The current local Windows/MSVC HDF5 installation is:
+
+```text
+C:\Program Files\HDF_Group\HDF5\2.1.1
+```
+
+Implementation planning should use the HDF5 C API through the adapter layer, not the HDF5 C++ API. CMake discovery should prefer one of these explicit environment variables before falling back to default package search:
+
+```powershell
+$env:HDF5_ROOT = "C:\Program Files\HDF_Group\HDF5\2.1.1"
+$env:HDF5_DIR = "C:\Program Files\HDF_Group\HDF5\2.1.1\cmake"
+```
+
+The expected local artifacts are `include\hdf5.h`, `lib\hdf5.lib`, `bin\hdf5.dll`, and `cmake\hdf5-config.cmake`. `h5dump.exe -V` should report HDF5 `2.1.1` on this machine.
+
 ### Runtime Polymorphism
 Elements, materials, loads, and boundary conditions are handled through base interfaces. Phase 1 prioritizes clarity and testability. If large-model performance requires it later, assembly internals may add type-specific batch kernels.
 
@@ -247,6 +263,8 @@ element_id, gauss_id, section_point, S11, S22, S12, S13, S23
   feature_id
   solver_version
   model_id
+  hdf5_version
+  schema_version
   units
   tolerance
   reference_solver