feat(console/sm): proxy config

docs/self-managed/console-deployment/configuration/configuration.md

@@ -41,6 +41,20 @@ Console environment variables could be set in Helm via the `console.env` key. Fo
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 :::
 
+### Proxy
+
+These settings are useful when the application needs to make outgoing network requests in environments that require traffic to pass through a proxy server.
+
+| Environment variable | Description                                                                                    | Example value                         | Default value |
+| -------------------- | ---------------------------------------------------------------------------------------------- | ------------------------------------- | ------------- |
+| `http_proxy`         | Specifies the proxy server to be used for outgoing HTTP requests.                              | `http://proxy.example.com:8080`       | -             |
+| `https_proxy`        | Specifies the proxy server to be used for outgoing HTTPS requests.                             | `https://secureproxy.example.com:443` | -             |
+| `no_proxy`           | A comma-separated list of domain names or IP addresses for which the proxy should be bypassed. | `localhost,127.0.0.1,.example.com`    | -             |
+
+:::note
+The proxy-related environment variables are lowercase because they follow a widely accepted convention used in many system environments and tools.
+:::
+
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