chore: init frontend+backend skeleton

backend/CMakeLists.txt

@@ -0,0 +1,46 @@
+cmake_minimum_required(VERSION 3.28)
+project(csp_backend LANGUAGES CXX)
+
+# Drogon 1.8.x on Ubuntu still uses legacy CMake commands.
+cmake_policy(SET CMP0153 OLD)
+
+find_package(Drogon CONFIG REQUIRED)
+find_package(Catch2 3 REQUIRED)
+
+add_library(csp_core
+  src/version.cc
+)
+
+target_include_directories(csp_core PUBLIC
+  ${CMAKE_CURRENT_SOURCE_DIR}/include
+)
+
+# SQLite will be used via Drogon DB client in later iterations.
+
+add_executable(csp_server
+  src/main.cc
+  src/health_controller.cc
+)
+
+target_include_directories(csp_server PRIVATE
+  ${CMAKE_CURRENT_SOURCE_DIR}/include
+)
+
+target_link_libraries(csp_server PRIVATE
+  Drogon::Drogon
+  csp_core
+)
+
+enable_testing()
+add_executable(csp_tests
+  tests/test_main.cc
+  tests/version_test.cc
+)
+
+target_link_libraries(csp_tests PRIVATE
+  Catch2::Catch2WithMain
+  csp_core
+)
+
+include(CTest)
+add_test(NAME csp_tests COMMAND csp_tests)