Merge branch 'docs/update_ble_api_homepage' into 'master'

docs: Update Bluetooth Low Energy API home page

Closes DOC-11912

See merge request espressif/esp-idf!42630

docs/en/api-reference/bluetooth/bt_le.rst

@@ -1,8 +1,41 @@
-Bluetooth® Low Energy (Bluetooth LE)
+Bluetooth\ :sup:`®` Low Energy
 ====================================
 
+:link_to_translation:`zh_CN:[中文]`
+
+**Bluetooth Low Energy (Bluetooth LE)** provides low-power wireless communication for IoT devices such as wearables, sensors, and smart home products. This section documents the **Bluetooth LE API Reference**, covering APIs for device discovery, data exchange, and Wi-Fi provisioning over Bluetooth LE.
+
+For usage concepts and tutorials, see :doc:`Bluetooth Low Energy <../../../api-guides/ble/index>` in **API Guides**.
+
+The Bluetooth LE API in ESP-IDF is organized into the following parts:
+
+- :doc:`Bluetooth Low Energy GAP <esp_gap_ble>`
+
+  Handles advertising, scanning, connection management, and security operations
+
+- :doc:`Bluetooth Low Energy GATT Define <esp_gatt_defs>`
+
+  Common data types and constants for attributes, characteristics, and UUIDs used in GATT operations
+
+- :doc:`Bluetooth Low Energy GATT Server <esp_gatts>`
+
+  Exposes services and characteristics to remote clients (peripheral role)
+
+- :doc:`Bluetooth Low Energy GATT Client <esp_gattc>`
+
+  Discovers and accesses services on remote servers (central role)
+
+.. only:: SOC_BLUFI_SUPPORTED
+
+   - :doc:`Bluetooth Low Energy BluFi <esp_blufi>`
+
+     Enables Wi-Fi provisioning and configuration via Bluetooth LE
+
+Each part typically includes an **Overview**, **Application Examples**, and **API Reference**, covering purpose, main functionality, sample usage, and detailed API documentation.
+
 .. toctree::
-   :caption: Bluetooth Low Energy
+   :maxdepth: 1
+   :hidden:
 
    Bluetooth Low Energy GAP <esp_gap_ble>
    Bluetooth Low Energy GATT Define <esp_gatt_defs>

docs/zh_CN/api-reference/bluetooth/bt_le.rst

@@ -1 +1,44 @@
-.. include:: ../../../en/api-reference/bluetooth/bt_le.rst
+低功耗蓝牙\ :sup:`®`
+========================
+
+:link_to_translation:`en:[English]`
+
+**低功耗蓝牙** 提供适合物联网应用的低功耗无线通信，常用于可穿戴设备、传感器及智能家居等场景。本章节介绍 **低功耗蓝牙 API 参考**，涵盖用于设备发现、数据交换以及通过低功耗蓝牙进行 Wi-Fi 配网的 API。
+
+如需了解使用概念和开发教程，请参阅 **API 指南** 中的 :doc:`低功耗蓝牙 <../../../api-guides/ble/index>` 章节。
+
+ESP-IDF 中的低功耗蓝牙 API 包括以下部分：
+
+- :doc:`Bluetooth Low Energy GAP <esp_gap_ble>`
+
+  用于设备广播、扫描、连接管理及安全操作
+
+- :doc:`Bluetooth Low Energy GATT Define <esp_gatt_defs>`
+
+  定义 GATT 操作中使用的属性、特征、UUID 及相关常量和数据类型
+
+- :doc:`Bluetooth Low Energy GATT Server <esp_gatts>`
+
+  向远程客户端提供服务和特征（外围设备角色）
+
+- :doc:`Bluetooth Low Energy GATT Client <esp_gattc>`
+
+  发现并访问远程服务器的服务（中心设备角色）
+
+.. only:: SOC_BLUFI_SUPPORTED
+
+   - :doc:`Bluetooth Low Energy BluFi <esp_blufi>`
+
+     通过低功耗蓝牙实现 Wi-Fi 配网和配置
+
+每个部分通常包含 **概述**、**应用示例** 和 **API 参考**，涵盖用途、主要功能、示例用法及详细 API 文档。
+
+.. toctree::
+   :maxdepth: 1
+   :hidden:
+
+   Bluetooth Low Energy GAP <esp_gap_ble>
+   Bluetooth Low Energy GATT Define <esp_gatt_defs>
+   Bluetooth Low Energy GATT Server <esp_gatts>
+   Bluetooth Low Energy GATT Client <esp_gattc>
+   :SOC_BLUFI_SUPPORTED: Bluetooth Low Energy BluFi <esp_blufi>