docs: clarify that the first astrbot in docker exec is the container name

docs/en/deploy/astrbot/docker.md

@@ -133,6 +133,8 @@ If you forget the dashboard password, you can reset it with the built-in AstrBot
 sudo docker exec -it astrbot astrbot password
 ```
 
+The first `astrbot` is the container name; replace it with your actual container name (check with `sudo docker ps`).
+
 Follow the prompt to enter a new password. To also change the username:
 
 ```bash

docs/en/faq.md

@@ -38,6 +38,8 @@ sudo docker exec -it astrbot astrbot password
 sudo docker restart astrbot # the new password takes effect after a restart
 ```
 
+The first `astrbot` is the container name; replace it with your actual container name (check with `sudo docker ps`).
+
 To also change the username, add the `--username` option: `sudo docker exec -it astrbot astrbot password --username <new-username>`.
 
 #### uv / pip Package Deployment

docs/zh/deploy/astrbot/docker.md

@@ -149,6 +149,8 @@ docker run -itd -p 6185:6185 -p 6199:6199 -e TZ=Asia/Shanghai -v "${PWD}\data:/A
 sudo docker exec -it astrbot astrbot password
 ```
 
+其中第一个 `astrbot` 是容器名，如果你的容器名不同，请相应替换（可通过 `sudo docker ps` 查看容器名）。
+
 按提示输入新密码即可。如需同时修改用户名：
 
 ```bash

docs/zh/faq.md

@@ -39,6 +39,8 @@ sudo docker exec -it astrbot astrbot password
 sudo docker restart astrbot # 修改后需要重启容器才能生效
 ```
 
+其中第一个 `astrbot` 是容器名，如果你的容器名不同，请相应替换（可通过 `sudo docker ps` 查看容器名）。
+
 如需同时修改用户名，可以加 `--username` 参数：`sudo docker exec -it astrbot astrbot password --username <新用户名>`。
 
 #### uv / pip 软件包部署