---

## NotificationListener
Headless SSE listener for real-time notifications. Reconnects with exponential backoff (1–30s).
Connects to `basePath` (default `/api/notifications/stream`). Pair with `createStreamHandler(sse)` on the server — mount its `GET` on the stream route.

**Import:** `import { NotificationListener } from '@urbicon-ui/auth';`

### Examples
```svelte
<NotificationListener onNotification={(n) => store.add(n)} />
```

### Api
| Prop | Type | Required | Default | Description |
| --- | --- | :---: | --- | --- |
| basePath | `string` | no | '/api/notifications/stream' | SSE stream endpoint. Read once when the component mounts — to switch endpoints (e.g. after a user change), unmount and remount the listener. |
| maxReconnectAttempts | `number` | no | 5 | Maximum reconnection attempts before giving up. Read once at mount. |
| onError | `(error: Event) => void` | no |  | Called when the SSE connection encounters an error. |
| onNotification | `(
    notification: import('../../../server/adapters/types.js').NotificationRecord
  ) => void` | no |  | Called when a new notification arrives via SSE. |
| onReconnect | `(attempt: number) => void` | no |  | Called when a reconnection attempt starts. Receives current attempt number. |