Move files into /cmake/ instead of a cppbessot subdir of it

cmake/dbGenZod.cmake

@@ -0,0 +1,31 @@
+include_guard(GLOBAL)
+
+include("${CMAKE_CURRENT_LIST_DIR}/dbGenerationCommon.cmake")
+
+function(cppbessot_add_db_gen_zod_target version)
+  # Purpose: Register Zod schema generation target from OpenAPI input.
+  # Inputs:
+  #   - version: Schema version to generate for.
+  #   - CPPBESSOT_NPX_EXECUTABLE: Path to `npx`.
+  # Outputs:
+  #   - CMake target: `db_gen_zod` (EXCLUDE_FROM_ALL).
+  #   - File `<version>/generated-zod/schemas.ts`.
+  cppbessot_validate_schema_version("${version}")
+  cppbessot_get_version_dir(_version_dir "${version}")
+
+  set(_openapi_file "${_version_dir}/openapi/openapi.yaml")
+  set(_output_dir "${_version_dir}/generated-zod")
+  set(_output_file "${_output_dir}/schemas.ts")
+
+  add_custom_target(db_gen_zod
+    COMMAND ${CMAKE_COMMAND} -E make_directory "${_output_dir}"
+    COMMAND "${CPPBESSOT_NPX_EXECUTABLE}" --no-install openapi-zod-client
+            --input "${_openapi_file}"
+            --output "${_output_file}"
+            --export-schemas
+    COMMENT "Generating Zod schemas for ${version}"
+    VERBATIM
+  )
+
+  set_target_properties(db_gen_zod PROPERTIES EXCLUDE_FROM_ALL TRUE)
+endfunction()