Add wiring order and mounting guidance to electrical docs

[Copilot]

The electrical wiki was missing a simple gauge ordering reference, a reminder for CANivore placement, and a consistent convention for referring to battery box sides. This updates the relevant docs so wiring, mounting, and battery orientation can be communicated unambiguously during robot assembly.

• Wiring cheat sheet

  • Added a largest-to-smallest wire gauge sequence: 4 AWG -> 10 AWG -> 18 AWG -> 22 AWG
  • Added a short rationale for routing larger, less flexible wire first
  • Added battery box direction labeling guidance using North / South / East / West

• Component mounting

  • Added a CANivore mounting note to preserve USB access and clean CAN wire routing before final tightening

• Screenshots

  • Attached updated renders for:
    • Electrical/Wiring Cheat Sheet
    • Electrical/Component Mounting

## Wiring Order

Use wire in this order from largest to smallest gauge:

Starting with the thickest, least flexible wire helps reserve space for high-current runs first and keeps smaller control wiring easier to route around them.

1. **4 AWG** - Battery leads
2. **10 AWG** - High-current motor power
3. **18 AWG** - Control system and low-current power
4. **22 AWG** - Signal and device pigtails