feat(low_controller): Integrate LowController for low-level command handling

- Added LowController class to manage low-level commands and communication.
- Updated CustomRobot to initialize and manage LowController, including methods for processing low-level commands.
- Enhanced logger functionality with variadic template methods for formatted logging.
- Updated CMakeLists.txt to include the new low_controller.cpp source file and low_controller.hpp header.

include/custom_robot.hpp

@@ -5,6 +5,7 @@
 #include "logger.hpp"
 #include "mqtt.hpp"
 #include "navigation.hpp"
+#include "low_controller.hpp"
 
 #include <memory>
 #include <atomic>
@@ -40,11 +41,13 @@ public:
     bool processRscCmd(const std::string& cmd, const nlohmann::json& message);
     bool processNavCmd(const std::string& cmd, const nlohmann::json& message);
     bool processMscCmd(const std::string& cmd, const nlohmann::json& message);
+    bool processLowCmd(const std::string& cmd, const nlohmann::json& message);
     void printServiceList(const std::vector<unitree::robot::go2::ServiceState>& serviceList, int filterStatus = -1);
 
 private:
     std::string generateRandomClientId() const;
     std::unique_ptr<Controller> controller_;
+    std::unique_ptr<LowController> low_controller_;
     std::unique_ptr<Navigation> navigation_;
     std::unique_ptr<unitree::robot::go2::RobotStateClient> rsc_;
     std::unique_ptr<MqttClient> mqttClient_;