Detect path mismatch between Moonraker and Klipper

[codefoster]

Is your feature request related to a problem? Please describe

I'm new to Klipper but just spent a couple of days troubleshooting an issue that was ultimately simple. The default path for moonraker's gcode files ~/printer_data/gcodes and the path I configured in my printer.cfg (because that's the config file I found on the internet for my printer and didn't know to change it) were different, so I could see my gcode files in Mainsail, but when I tried to print one it said "unable to open file" (or something like that).

Describe the solution you'd like

The logs did help, but I am suggesting a feature that would detect this mismatch condition to increase the chances of a new Klipper user having more of a "5 minutes to wow" instead of "2 days of grrr" :)

Describe alternatives you've considered

No response

Additional information

No response