Add Docker environment variables documentation

- Update environment-variables.mdx with Docker-specific environment variable guidance
- Add environment variable sections to docker-development.mdx and docker.mdx
- Provide instructions for updating environment variables in Docker containers
- Include a warning about properly recreating containers when changing environment variables

docs/deployment/docker-development.mdx

@@ -183,4 +183,8 @@ If hot reload isn't working:
 3. Try restarting the UI container:
    ```bash
    docker compose -f docker-compose.dev.yml restart ui
-   ```
+   ```
+
+## Environment Variables
+
+For detailed information about environment variables and how to update them in Docker, see our [Environment Variables](/configuration/environment-variables#docker-environment-variables) documentation.

docs/deployment/docker.mdx

@@ -135,6 +135,10 @@ services:
       - ./custom-nginx.conf:/etc/nginx/conf.d/default.conf
 ```
 
+## Environment Variables
+
+For detailed information about environment variables and how to update them in Docker, see our [Environment Variables](/configuration/environment-variables#docker-environment-variables) documentation.
+
 ## Maintenance
 
 ### Updates