Firmware buffers 200-byte chunks into 4 KiB blocks for esp_ota_write; goTool uploads with per-block ACK flow control and larger UART buffers to avoid stalls. Co-authored-by: Cursor <cursoragent@cursor.com>
Initialize WiFi and ESP-NOW from shared app config; master broadcasts discover packets and collects slave info, slaves respond on matching network while UART commands stay master-only. Co-authored-by: Cursor <cursoragent@cursor.com>
