restoreBluetoothAdapterName

Restores the device's global Bluetooth adapter name if a previous BluetoothServer advertising session overrode it (to advertise a custom local name) and was interrupted—e.g. by a process kill—before it could restore it. BluetoothServer restoration is best-effort and runs on graceful teardown; call this to also repair a leak from a prior process, for example from Application.onCreate, when the app does not build a server on startup.

The original name is only restored if the adapter still holds the overridden name, so a name the user or another app has since changed is never clobbered. Any stale record is cleared either way.

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