Initial kesp32_app_base component

include/ota_update.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include "esp_err.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/event_groups.h"
+
+/** Mark an OTA image valid after application-level network diagnostics pass. */
+esp_err_t ota_mark_running_app_valid(void);
+
+/** Start the periodic HTTPS OTA worker when OTA is configured. */
+esp_err_t ota_start_task(EventGroupHandle_t network_events, EventBits_t connected_bit);