Merge branch 'feat/use_ot_cmakelists_v5.3' into 'release/v5.3'

feat(openthread): use upstream CMakeLists.txt for radio build (v5.3)

See merge request espressif/esp-idf!46593

components/openthread/private_include/esp_openthread_debug.h

@@ -0,0 +1,55 @@
+/*
+ * SPDX-FileCopyrightText: 2026 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
+
+#include <esp_err.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if CONFIG_OPENTHREAD_TASK_BLOCK_MONITOR
+/**
+ * @brief This function creates the OpenThread task block monitor.
+ *        The monitor task periodically checks whether the OpenThread mainloop
+ *        has been blocked for more than `CONFIG_OPENTHREAD_TASK_BLOCK_MONITOR_TIMEOUT`
+ *        seconds and prints backtraces when a block is detected.
+ *
+ * @return
+ *      - ESP_OK on success
+ *      - ESP_FAIL if the monitor task cannot be created
+ *
+ */
+esp_err_t esp_openthread_task_block_monitor_create(void);
+
+/**
+ * @brief This function deletes the OpenThread task block monitor.
+ *
+ * @return
+ *      - ESP_OK on success
+ *
+ */
+esp_err_t esp_openthread_task_block_monitor_delete(void);
+
+/**
+ * @brief This function enables or disables the OpenThread task block monitor.
+ *
+ * @note When enabled, the latest mainloop activity timestamp is updated and the
+ *       monitor task starts checking for blocking. When disabled, monitoring is
+ *       temporarily stopped.
+ *
+ * @param[in] enable  True to enable the monitor, false to disable it.
+ *
+ */
+void esp_openthread_task_block_monitor_set(bool enable);
+#endif  // CONFIG_OPENTHREAD_TASK_BLOCK_MONITOR
+
+#ifdef __cplusplus
+}
+#endif