Device services

Wi-Fi / SNTP bring-up and persistent NVS settings. More...

Files
file	main/addr_check.h
	Structural address checks for the config portal.
file	main/assets.h
	What each selectable asset IS — one row per pos_chain_t.
file	main/card_status.h
	What a tapped card is missing, read from its SELECT response.
file	main/civil_time.h
	TZ-independent calendar arithmetic and date-string parsing.
file	main/form_parse.h
	application/x-www-form-urlencoded field extraction.
file	main/json_out.h
	Escaping for values the config portal puts inside a JSON string.
file	main/net.h
	Network bring-up: Wi-Fi station (init/scan/connect/RSSI) and SNTP time sync. No application-protocol logic lives here — the Ethereum JSON-RPC client is in eth_rpc.h.
file	main/ota.h
	Firmware slot handling: receive an image into the idle slot, verify it, and install it only once somebody accepts it on the panel.
file	main/ota_version.h
	Dotted version comparison, for deciding whether an update goes forwards or backwards.
file	main/provision.h
	The config portal: one web app for setting a terminal up and for administering it afterwards, in two modes.
file	main/settings.h
	Persistent device settings stored in NVS (backlight, Wi-Fi creds).
file	main/settings_rules.h
	What a setting may be, apart from where it is stored.
file	main/wdt.h
	Task-watchdog feed that is safe to call from any task.

Detailed Description

Wi-Fi / SNTP bring-up and persistent NVS settings.

Platform plumbing with no application-protocol logic: network station management and time sync (net.h), and the NVS-backed settings store (settings.h).