Address first part of review comments

externals/CMakeLists.txt

@@ -116,6 +116,11 @@ if (ENABLE_WEB_SERVICE)
     if (WIN32)
         target_link_libraries(httplib INTERFACE crypt32 cryptui ws2_32)
     endif()
+	
+    # cpp-jwt
+    add_library(cpp-jwt INTERFACE)
+    target_include_directories(cpp-jwt INTERFACE ./cpp-jwt/include)
+    target_compile_definitions(cpp-jwt INTERFACE CPP_JWT_USE_VENDORED_NLOHMANN_JSON)
 endif()
 
 # Opus