Rev 0.2: Major hardware improvements and production readiness

Hardware Improvements (Thanks to shx for schematic cleanup):
- Clean up schematic organization and structure
- Set CAN transceiver Silent pin to GND for stability
- Add status LEDs (yellow: 24V/5V/3.3V, green: MCU PB4)
- Replace jumpers with solder jumpers on bottom side
- Add jumpers to output PFETs for permanent-on without firmware
- Add robust test points for 5V/GND load testing
- Add optional heatsink for DC/DC converter on bottom
- Add 10µF capacitor for MCU on 3.3V rail

Component Optimizations:
- Replace 30kΩ with 33kΩ basic part for simplified BOM
- Change DC/DC feedback: 15.5kΩ15kΩ (new output: 5.1V)
- Upgrade CAN ESD protection: NUP2105LPESD1CAN
- Increase CAN termination resistor footprint: 04020603
- Switch USB hub supply from 5V to 3.3V per datasheet

Production Ready:
- Add all LCSC part numbers and rotations
- Generate complete production data package
- Improve PCB layout and button placement
- Create comprehensive changelog documentation

production/designators.csv

@@ -19,48 +19,62 @@ C301:1
 C302:1
 C303:1
 C304:1
+C305:1
+C306:1
 C401:1
 C402:1
 C403:1
 C404:1
 C405:1
 C406:1
-C407:1
+D201:1
+D202:1
+D203:1
+D301:1
+D302:1
 D401:1
 D402:1
 D403:1
 D404:1
 D405:1
+D406:1
 F201:1
 F401:1
 F402:1
 F403:1
 F404:1
-F405:1
+HS201:1
 J301:1
-J302:1
 J401:1
 J402:1
 J403:1
 J404:1
 J405:1
 J406:1
-J407:1
 JP301:1
 JP302:1
 JP303:1
 JP304:1
 JP305:1
 JP306:1
+JP307:1
 JP401:1
+JP402:1
 L201:1
-MH1:1
-MH2:1
-MH3:1
-MH4:1
-Q301:1
+LABEL101:1
+LABEL102:1
+LABEL103:1
+LABEL104:1
+LABEL105:1
+MH101:1
+MH102:1
+MH103:1
+MH104:1
+NT201:1
 Q401:1
-QR*****:1
+Q402:1
+Q403:1
+Q404:1
 R201:1
 R202:1
 R203:1
@@ -69,6 +83,9 @@ R205:1
 R206:1
 R207:1
 R208:1
+R209:1
+R210:1
+R211:1
 R301:1
 R302:1
 R303:1
@@ -82,18 +99,23 @@ R405:1
 R406:1
 R407:1
 R408:1
-REF**:3
+R409:1
+R410:1
+R411:1
+R412:1
 SW301:1
 SW302:1
+TP201:1
+TP202:1
+TP203:1
 TP301:1
 TP302:1
 TP303:1
-TP304:1
 U201:1
 U202:1
 U301:1
+U302:1
 U401:1
 U402:1
 U403:1
 U404:1
-U405:1