feat(cli): add command to show qr code (#2518)

* refactor cli, add commands

* add docs

* improve

* fix ec mode order

docs/content/guides/cli.md

@@ -41,3 +41,31 @@ docker compose exec -it wg-easy cli db:admin:reset --password <new_password>
 ```
 
 This will reset the password for the admin user to the new password you provided. If you include special characters in the password, make sure to escape them properly.
+
+### Show Clients
+
+List all clients that are currently configured with details such as client ID, Name, Public Key, and enabled status.
+
+```shell
+cli clients:list
+```
+
+### Show Client QR Code
+
+Display the QR code for a specific client, which can be scanned by a compatible app to import the client's configuration.
+
+```shell
+cli clients:qr <client_id>
+```
+
+Replace `<client_id>` with the actual client ID you want to show the QR code for.
+
+/// warning | IPv6 Support
+
+IPv6 support is enabled by default, even if you disabled it using environment variables. To disable it pass the `--no-ipv6` flag when running the CLI.
+
+```shell
+cli clients:qr <client_id> --no-ipv6
+```
+
+///