Rev. 0.3: Add 10µF capacitor C304 to CAN transceiver and QR code placeholder

- Added 10µF capacitor C304 for improved CAN communication stability
- Added QR code placeholder for serial number on PCB
- Enhanced signal integrity with additional filtering at CAN transceiver
- Improved traceability with unique identification capability
- Updated changelogs and documentation for Rev. 0.3

production/positions.csv

@@ -19,9 +19,10 @@ C217,177.25,-116.9,270.0,top
 C301,173.25,-83.52,270.0,top
 C302,173.1,-86.45,90.0,top
 C303,174.3,-86.675,270.0,top
-C304,157.3875,-78.5475,90.0,top
-C305,142.875,-77.6,180.0,top
-C306,142.875,-75.2,180.0,top
+C304,157.65,-76.1,90.0,top
+C305,157.3875,-78.5475,90.0,top
+C306,142.875,-77.6,180.0,top
+C307,142.875,-75.2,180.0,top
 C401,180.78,-78.7,0.0,top
 C402,178.125,-77.2,180.0,top
 C403,175.4,-104.9,270.0,top