Correction not applied correctly

[LuckPeerlings]

When applying the calibration, the updated values are sometimes not following the calibration table.

When applying a negative number, the results are off.
When using (small) positive numbers, the values are correct.

Example
Excerpt Log File where a calibration between [-0.2,0.1] rad is given (see table in below MWE). Applied differences are in the order of 2 rad.
Nov 02 21:12:56 2024-11-02T20:12:56.980Z @signalk/calibration navigation.courseOverGroundMagnetic(TestFile.II) 3.648610802127232 => 5.5016394631116565)
Nov 02 21:12:57 2024-11-02T20:12:57.387Z @signalk/calibration navigation.courseOverGroundMagnetic(TestFile.II) 3.653672256959171 => 5.5160544645896685)
Nov 02 21:12:57 2024-11-02T20:12:57.794Z @signalk/calibration navigation.courseOverGroundMagnetic(TestFile.II) 3.6514033289310603 => 5.509592567375386)

Version
SignalK server version 2.11.0
Calibration plugin version 1.3.1

MWE

1. Create Filestream with the default NMEA 0183 file "/usr/lib/node_modules/signalk-server/samples/plaka.log"
2. Apply calibration
   
3. Changing the calibration values, such that the differences are all positive (0.1rad) resolves the issue.

[tkurki]

See #11. If you remove the period your config should work, but the values won't be capped to [0, Math.PI].