fix(core/binding): 将 action_arg 改为值类型避免悬空指针问题

include/zdwm/config.h

@@ -111,7 +111,7 @@ typedef struct zdwm_api_t {
     zdwm_binding_mode_id_t bind_mode,
     const char *key_sequence,
     zdwm_action_fn action_fn,
-    zdwm_action_arg_t *action_arg
+    zdwm_action_arg_t action_arg
   );
 
   /**