Major hardware update: toolhead switching, DC/DC protection, and documentation overhaul

Hardware Changes:
- Replaced reverse polarity protection with 2x PFET toolhead switching (PB2/PA5 control)
- Added SS56 Schottky diode reverse polarity protection for DC/DC converter
- Updated current limit resistor to 5.1kΩ (~10.2A)
- Removed fan control circuitry and JST-XH connector
- Removed internal JST-XH USB port with fuse/protection

Documentation Updates:
- Updated both README files to reflect hardware changes
- Removed all fan control references and configurations
- Updated Klipper configuration examples
- Cleaned up pinout and connector assignments
- Updated technical specifications table
- Fixed table of contents and cross-references

production/positions.csv

@@ -0,0 +1,90 @@
+Designator,Mid X,Mid Y,Rotation,Layer
+C201,161.5,-104.2,180.0,top
+C202,151.605,-108.35,180.0,top
+C203,184.7,-76.8,180.0,top
+C204,156.205,-110.65,0.0,top
+C205,151.605,-110.65,180.0,top
+C206,156.205,-108.35,0.0,top
+C207,180.0,-75.5,270.0,top
+C208,159.33,-117.85,270.0,top
+C209,160.28,-117.85,270.0,top
+C210,156.08,-119.35,270.0,top
+C211,152.78,-117.83,90.0,top
+C212,160.005,-108.55,180.0,top
+C213,158.13,-119.35,90.0,top
+C214,174.95,-112.3,90.0,top
+C215,177.25,-112.3,90.0,top
+C216,174.95,-116.9,270.0,top
+C217,177.25,-116.9,270.0,top
+C301,165.07,-91.1,0.0,top
+C302,165.55,-89.7,90.0,top
+C303,142.875,-77.6,180.0,top
+C304,142.875,-75.2,180.0,top
+C401,180.78,-78.7,0.0,top
+C402,178.775,-77.2,0.0,top
+C403,162.1375,-85.5475,90.0,top
+C404,178.48,-78.4,0.0,top
+C405,175.4,-104.9,270.0,top
+C406,185.0,-103.5,90.0,top
+C407,180.2,-103.7,270.0,top
+D401,138.45,-118.35,90.0,top
+D402,155.3375,-85.5475,180.0,top
+D403,152.94,-94.0,0.0,top
+D404,184.15,-79.25,0.0,top
+D405,187.4,-75.55,0.0,top
+F201,151.885,-102.75,180.0,top
+F401,143.1125,-104.0,180.0,top
+F402,143.0125,-87.2,180.0,top
+F403,184.5625,-110.8,0.0,top
+F404,179.6625,-100.3,0.0,top
+F405,159.9,-97.6,90.0,top
+J301,162.5,-70.5,270.0,bottom
+J302,183.4,-120.125,180.0,top
+J401,138.725,-95.6,90.0,top
+J402,137.965,-109.6,90.0,top
+J403,137.965,-81.6,90.0,top
+J404,167.6,-96.675,0.0,top
+J405,191.0,-82.0,90.0,top
+J406,191.0,-108.0,90.0,top
+J407,179.74,-95.0,180.0,top
+JP301,152.4,-81.28,270.0,top
+JP302,168.91,-77.47,180.0,top
+JP303,163.83,-77.47,180.0,top
+JP304,160.0,-77.47,180.0,top
+JP305,172.72,-77.47,180.0,top
+JP306,152.4,-77.47,270.0,top
+JP401,156.6675,-90.17,270.0,top
+L201,166.68,-114.6,0.0,top
+Q301,184.2625,-113.85,0.0,top
+Q401,148.835,-98.7,0.0,top
+R201,153.5,-121.25,90.0,top
+R202,156.68,-121.25,90.0,top
+R203,155.48,-121.25,270.0,top
+R204,153.75,-118.75,270.0,top
+R205,160.28,-110.775,90.0,top
+R206,157.18,-119.35,90.0,top
+R207,159.08,-119.7,270.0,top
+R208,154.5,-121.25,270.0,top
+R301,170.1,-82.3,180.0,top
+R302,172.1,-82.3,180.0,top
+R303,165.04,-92.11,0.0,top
+R304,188.41,-114.9,0.0,top
+R305,186.9,-115.21,90.0,top
+R401,140.05,-118.95,90.0,top
+R402,140.05,-117.04,90.0,top
+R403,154.8,-87.8,180.0,top
+R404,181.3,-80.59,90.0,top
+R405,190.4,-87.8,180.0,top
+R406,190.2,-102.2,180.0,top
+R407,190.4,-76.2,180.0,top
+R408,190.2,-113.8,180.0,top
+SW301,171.4,-84.6,180.0,top
+SW302,161.8,-90.7,270.0,top
+U201,182.6,-75.7,180.0,top
+U202,156.23,-115.2,90.0,top
+U301,169.15,-89.7,90.0,top
+U401,159.4875,-85.5725,180.0,top
+U402,178.2,-81.5,90.0,top
+U403,184.1,-82.0,0.0,top
+U404,184.1625,-107.5,180.0,top
+U405,178.2,-88.6,270.0,top