update SkillCall.msg

src/msg/SkillCall.msg

@@ -4,3 +4,5 @@ string interface_type # e.g., "interfaces/action/MoveWaist" or "interfaces/srv/V
 string call_kind      # "action" | "srv"
 string topic          # optional topic/service override; empty => use defaults/parameters
 string payload_yaml   # YAML string of Goal/Request fields; may be empty for default goal
+string instance_name  # optional instance name; empty => use default
+int32 timeout_ms   # optional timeout; 0 => use default