固件 0.1.14~0.1.16-c5：Hub 按需启停（hubctl）、开机长按统一 5 s

Co-Authored-By: Claude Opus 5.5 <[email protected]>

firmware/main/CMakeLists.txt

@@ -13,6 +13,7 @@ idf_component_register(
          "sched.c"
          "tasks.c"
          "chgmode.c"
+         "hubctl.c"
          "t_safety.c"
          "t_actuator.c"
          "t_thermal.c"