Detect under-voltage on GPIO1/11, persist UV state in NVS, enter a minimal
power mode without ESP-NOW, and recover after charge; expose LED mode 6
battery-low for host testing via goTool.
Co-authored-by: Cursor <cursoragent@cursor.com>
Expose the command via goTool CLI/REST and dashboard controls so log verbosity can be tuned without reflashing.
Co-authored-by: Cursor <cursoragent@cursor.com>
Split ESP-NOW into core/master/slave modules, block non-OTA UART traffic during updates, and hold the host serial port exclusively so dashboard polling cannot interleave with firmware uploads.
Co-authored-by: Cursor <cursoragent@cursor.com>
Document UART command flow, ESP-NOW data paths, and module map for
developers without covering goTool; link from main/README.
Co-authored-by: Cursor <cursoragent@cursor.com>