provision-node

Bring an ESP32 sensing node online.

1. Pick a firmware variant

• s3-8mb (display build) — ESP32-S3 N16R8 / 16MB; AMOLED optional. The display-detect fix (#1000) means a bare board still captures CSI (MGMT+DATA).
• s3-4mb (no-display) — ESP32-S3 4MB; dual-OTA, display disabled.
• c6 — ESP32-C6 + Seeed MR60BHA2 (60 GHz mmWave + WiFi CSI). The mmwave probe requires a validated MR60 header (#1107) so an empty UART never false-detects.

Prebuilt binaries: GitHub release v0.8.1-esp32 (hardware-validated on S3 QFN56 rev v0.2).

2. Flash

ESP-IDF v5.4 on Windows is subprocess-only (Git Bash/MSYS is unsupported — strip MSYSTEM* env vars). Offsets for the S3 image: