FEAT: unit-tests/CMakeLists.txt add minimum version for Catch2

unit_tests/CMakeLists.txt

-Include(FetchContent)
+# Catch2 configuration
+set(CATCH2_MIN_VERSION 3.3.0)
 
-FetchContent_Declare(
-  Catch2
-  GIT_REPOSITORY https://github.com/catchorg/Catch2.git
-  GIT_TAG        v3.7.1 # or a later release
-)
+# Try to find system installed Catch2
+find_package(Catch2 ${CATCH2_MIN_VERSION} QUIET)
 
-FetchContent_MakeAvailable(Catch2)
+if(NOT Catch2_FOUND)
+    message(STATUS "Catch2 not found in system, retrieving from git")
+    Include(FetchContent)
+
+    FetchContent_Declare(
+      Catch2
+      GIT_REPOSITORY https://github.com/catchorg/Catch2.git
+      GIT_TAG        devel # or a later release
+    )
+    FetchContent_MakeAvailable(Catch2)
+    message(STATUS "Fetched Catch2 version ${Catch2_VERSION}")
+else()
+    message(STATUS "Using system Catch2 version ${Catch2_VERSION}")
+endif()
 
 file(GLOB_RECURSE src_files "*.cpp")
 
@@ -16,7 +27,13 @@ target_link_libraries(tests${module_name} PUBLIC ${module_name})
 
 target_link_libraries(tests${module_name} PRIVATE Catch2::Catch2WithMain)
 
+# Setup testing
 list(APPEND CMAKE_MODULE_PATH ${catch2_SOURCE_DIR}/extras)
 include(CTest)
 include(Catch)
+
+# Discover and add tests
 catch_discover_tests(tests${module_name})
+
+# Set test configuration for CTest
+set(CTEST_CONFIGURATION_TYPE ${CMAKE_BUILD_TYPE})
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