Update license.md and cli.md

Author: Meggielqk

en_US/admin/cli.md

@@ -1015,10 +1015,11 @@ CLI is only for inspection, Rule and action managements are managed from dashboa
 
 ## license
 
-| Command                | Description                  |
-| ---------------------- | ---------------------------- |
-| license info           | Display License information. |
-| license update License | Update License information.  |
+| Command                | Description                         |
+| ---------------------- | ----------------------------------- |
+| license info           | Display License information.        |
+| license update License | Update License information.         |
+| license update default | Revert to default Community License |
 
 ### license info
 
@@ -1042,3 +1043,9 @@ emqx ctl license update <YOUR_LICENSE_STRING>
 ```
 
 You need to replace `YOUR_LICENSE_STRING` with the actual License string.
+
+### license update default
+
+```bash
+emqx ctl license update default
+```

en_US/deploy/assets/license.png

@@ -16,7 +16,7 @@ This page guides you through the process of obtaining a Commercial License and i
 
 To apply for a Commercial License with a valid License Key, contact your EMQ sales representative or fill out the contact information on our [Contact Us](https://www.emqx.com/en/contact?product=emqx&channel=apply-Licenses) page to apply for a commercial license. Our sales representative will contact you as soon as possible. 
 
-Suppose you prefer to try EMQX Enterprise before purchasing. In that case, you can apply for a Trial License on our [Trial License application page](https://www.emqx.com/en/apply-licenses/emqx) and the license file will be sent to your email box immediately:
+Suppose you prefer to try EMQX Enterprise before purchasing. In that case, you can apply for a Trial License on our [Trial License application page,](https://www.emqx.com/en/apply-licenses/emqx) and the license file will be sent to your email box immediately:
 
 - The Trial License is valid for 15 days;
 - The Trial License supports 10,000 concurrent connection lines.
@@ -52,18 +52,24 @@ You can update your license file and configure the settings for the license conn
 
    <img src="./assets/license.png" alt="license" style="zoom: 50%;" />
 
-#### Reset License on Dashboard
+#### Revert to Community License
 
-In addition to updating the license, the EMQX Dashboard also provides a **Reset License** button. This feature allows users to reset the system to the default single-node community license.
+The EMQX Dashboard also provides a **Remove License** button to allow users to revert to the default single-node Community License.
 
-After resetting to the default License:
+::: tip Note
+
+In cluster mode, the License cannot be removed. If you are using EMQX in cluster mode, you must first dissolve the cluster.
+
+:::
+
+After reverting to the Community License:
 
-- The current license will be cleared and replaced with the default community license.
-- Existing connections that exceed the license limit will remain active, but new connections will be rejected.
+- The current license will be cleared and replaced with the Community License.
+- Existing client connections will remain active.
 
 ::: tip Note
 
-The default license does not allow full commercial use and supports only single-node deployments. Resetting the license will disable clustered deployment.
+The Community License does not allow full commercial use and supports only single-node deployments. Removing the license will disable clustered deployment.
 
 :::
 
@@ -76,6 +82,7 @@ You can also use the following command to update your EMQX Enterprise License:
 
     license info             # Show license info 
     license update <License> # Update license given as a string
+    license update default   # Revert to default Community License
 ```
 
 ### Configuration File

en_US/deploy/license.md

@@ -1010,10 +1010,11 @@ Actions:
 
 ## license
 
-| 命令                   | 描述                |
-| ---------------------- | ------------------- |
-| license info           | 显示 License 信息。 |
-| license update License | 更新 License 信息。 |
+| 命令                   | 描述                     |
+| ---------------------- | ------------------------ |
+| license info           | 显示 License 信息。      |
+| license update License | 更新 License 信息。      |
+| license update default | 恢复为默认社区版 License |
 
 ### license info
 
@@ -1037,3 +1038,9 @@ emqx ctl license update <YOUR_LICENSE_STRING>
 ```
 
 请将 `YOUR_LICENSE_STRING` 替换为实际的 License 字符串。
+
+### license update default
+
+```bash
+emqx ctl license update default
+```

zh_CN/admin/cli.md

@@ -43,18 +43,24 @@
 
    <img src="./assets/license.png" alt="license" style="zoom: 50%;" />
 
-#### 在 Dashboard 中重置 License
+#### 恢复社区版 License
 
-除了更新 License 外，EMQX Dashboard 还提供了一个**重置 License** 按钮。该功能允许用户将系统恢复为默认的单节点社区版 License。
+EMQX Dashboard 还提供了一个**移除 License** 按钮，允许用户将系统恢复为默认的单节点社区版 License。
 
-重置为默认 License 后：
+::: tip 提示
+
+集群模式下无法移除 License。如果您正在使用集群部署，需要先解散集群。
+
+:::
+
+恢复为默认的社区版 License 后：
 
 - 当前的 License 将被清除，并替换为默认的社区版 License。
-- 当前已超出限额的连接可以继续保持，但无法建立新的连接。
+- 当前已连接的客户端不会受到影响。
 
 ::: tip 提示
 
-默认 License 不支持完整的商业用途，仅适用于单节点部署。重置 License 将会禁用集群部署。
+社区版 License 不支持完整的商业用途，仅适用于单节点部署。移除 License 将会禁用集群部署。
 
 :::
 
@@ -67,6 +73,7 @@
 
     license info             # 显示 license 信息 
     license update <License> # 更新 license，<License> 为 license 字符串
+    license update default   # 恢复为默认社区版 License
 ```
 
 ### 配置文件