feat(performance): add single-run timing and optimized symbol builds

src/fesa/CMakeLists.txt

@@ -131,6 +131,15 @@ target_compile_options(
         $<$<CXX_COMPILER_ID:MSVC>:/W4 /WX /EHsc>
 )
 
+# Profile the optimized production build with the same binary used for timing.
+foreach(_fesa_target fesa_solver fesa_cli)
+    target_compile_options(${_fesa_target} PRIVATE
+        $<$<AND:$<CXX_COMPILER_ID:MSVC>,$<CONFIG:Release>>:/Zi>)
+endforeach()
+target_link_options(fesa_cli PRIVATE
+    $<$<AND:$<CXX_COMPILER_ID:MSVC>,$<CONFIG:Release>>:/DEBUG /OPT:REF /OPT:ICF>)
+unset(_fesa_target)
+
 if(WIN32)
     if(NOT TARGET MKL::mkl_intel_thread OR NOT TARGET MKL::mkl_core OR
        NOT OMP_DLL_DIR OR NOT OMP_DLLNAME)