feat: Major hardware upgrade to Rev. 1

- Replace MOSFET with CJAC70P06 (60V voltage rating)
- Upgrade sensor from ADXL345 to ICM-20602 (better availability, 6-axis IMU)
- Change Micro Fit 3.0 connectors from SMD to THT mounting
- Add connector pinouts to silkscreen for easier assembly
- Clean up component placement and optimize layout
- Update overview image to reflect current design
- Add component order numbers to BOM
- Update production files with current components
- Add comprehensive changelog and table of contents
- Improve documentation structure with language links

Laser CANbus Toolhead.kicad_pro

@@ -521,6 +521,10 @@
       {
         "netclass": "24V",
         "pattern": "*_{L}"
+      },
+      {
+        "netclass": "24V",
+        "pattern": "V_{SYS}"
       }
     ]
   },
@@ -583,7 +587,7 @@
           "group_by": true,
           "label": "Exclude from BOM",
           "name": "${EXCLUDE_FROM_BOM}",
-          "show": false
+          "show": true
         },
         {
           "group_by": true,
@@ -632,6 +636,12 @@
           "label": "Manufacturer Part #",
           "name": "Manufacturer Part #",
           "show": true
+        },
+        {
+          "group_by": false,
+          "label": "Sim.Pin",
+          "name": "Sim.Pin",
+          "show": false
         }
       ],
       "filter_string": "",