feat: ship astrbot CLI in Docker image for in-container password reset

Install the project itself into the image so the `astrbot` console
script (including `astrbot password` and `astrbot conf set`) is
available inside the container, and mark /AstrBot as an initialized
AstrBot root via the .astrbot marker file.

This lets Docker users reset a forgotten dashboard password with:

    docker exec -it astrbot astrbot password

Document the workflow in the zh/en Docker deployment guides, including
the required container restart for the new password to take effect.

Dockerfile

@@ -28,7 +28,9 @@ RUN python -m pip install uv \
     && uv lock \
     && uv export --format requirements.txt --output-file requirements.txt --frozen \
     && uv pip install -r requirements.txt --no-cache-dir --system \
-    && uv pip install socksio uv pilk --no-cache-dir --system
+    && uv pip install socksio uv pilk --no-cache-dir --system \
+    && uv pip install . --no-deps --no-cache-dir --system \
+    && touch /AstrBot/.astrbot
 
 EXPOSE 6185
 

docs/en/deploy/astrbot/docker.md

@@ -125,6 +125,23 @@ If there are no errors, you will see a log message similar to `🌈 Dashboard st
 
 Next, you need to deploy any messaging platform to use AstrBot on that platform.
 
+## Reset the Dashboard Password
+
+If you forget the dashboard password, you can reset it with the built-in AstrBot CLI inside the container:
+
+```bash
+sudo docker exec -it astrbot astrbot password
+```
+
+Follow the prompt to enter a new password. To also change the username:
+
+```bash
+sudo docker exec -it astrbot astrbot password --username <new-username>
+```
+
+> [!TIP]
+> The new password takes effect after restarting the container: `sudo docker restart astrbot`.
+
 ## Configure an HTTP proxy in Docker
 
 Set the HTTP proxy in the WebUI under `Settings → Network → Proxy & Dependency Sources → HTTP Proxy`. AstrBot reaches that address **from inside its own container**, so `http://127.0.0.1:7890` points at the AstrBot container itself rather than the host or another container.

docs/zh/deploy/astrbot/docker.md

@@ -141,6 +141,23 @@ docker run -itd -p 6185:6185 -p 6199:6199 -e TZ=Asia/Shanghai -v "${PWD}\data:/A
 
 接下来，你需要部署任何一个消息平台，才能够实现在消息平台上使用 AstrBot。
 
+## 重置 Dashboard 密码
+
+如果忘记了 Dashboard 密码，可以通过容器内置的 AstrBot CLI 重置：
+
+```bash
+sudo docker exec -it astrbot astrbot password
+```
+
+按提示输入新密码即可。如需同时修改用户名：
+
+```bash
+sudo docker exec -it astrbot astrbot password --username <新用户名>
+```
+
+> [!TIP]
+> 修改后需要重启容器才能生效：`sudo docker restart astrbot`。
+
 ## 在 Docker 中配置 HTTP 代理
 
 AstrBot 的 HTTP 代理在 WebUI：`设置 → 网络 → 代理与依赖源 → HTTP 代理`。填写的地址由 **AstrBot 容器内部**访问，因此 `http://127.0.0.1:7890` 会连到 AstrBot 容器自己，而不是宿主机或其他容器。