Upstream merge 2024-07-11

[leonardehrenfried]

☢️ :skull_and_crossbones: REST API disabled by default :skull_and_crossbones: ☢️

Since the debug client no longer uses the REST API, it is now disabled by default!

To enable it again, add the following to otp-config.json:

{
  "otpFeatures" : {
    "LegacyRestApi": true
  }
}