refactor: remove remote control, zero-force mode and emergency stop

- Remove RC_ctrl_t and RemoteControlInit from robot_cmd.c
- Delete GIMBAL_ZERO_FORCE, gimbal_mode_e, Robot_Status_e from robot_def.h
- Remove EmergencyHandler and robot_state from robot_cmd.c
- Remove emergency commands from master_machine.h
- Remove remote_control and can_comm from CMakeLists.txt

application/robot_def.h

@@ -24,13 +24,6 @@
 
 #pragma pack(1)
 
-/* 机器人状态 */
-typedef enum
-{
-    ROBOT_STOP = 0,
-    ROBOT_READY,
-} Robot_Status_e;
-
 /* 应用状态 */
 typedef enum
 {
@@ -39,19 +32,11 @@ typedef enum
     APP_ERROR,
 } App_Status_e;
 
-/* 云台模式 */
-typedef enum
-{
-    GIMBAL_ZERO_FORCE = 0,
-    GIMBAL_GYRO_MODE,
-} gimbal_mode_e;
-
 /* ---- CMD 发布给 gimbal 的控制数据 ---- */
 typedef struct
 {
     float yaw;        // yaw 目标角度 (degrees, multi-turn)
     float pitch;      // pitch 目标角度 (degrees)
-    gimbal_mode_e gimbal_mode;
 } Gimbal_Ctrl_Cmd_s;
 
 /* ---- gimbal 发布给 CMD 的反馈数据 ---- */