Modular AWD controller and diagnostics interface for Haldex-equipped platforms. This ui-dev branch is a private development shell for next-generation UX and setup workflow.

• Firmware target: ESP32-S3 (LilyGo T-2CAN)
• Core focus: deterministic CAN control + modular signal mapping
• UI focus: safer setup flow, clearer diagnostics, cleaner production-ready UX