Function clientTracingMiddleware

clientTracingMiddleware(
options?: ClientTracingMiddlewareOptions,
): ClientMiddleware
Creates a @cleverbrush/client middleware that traces outbound HTTP calls and injects W3C Trace Context headers.

Register this as the first client middleware so it wraps retries, timeouts, and batching. The server-side tracingMiddleware already extracts these headers, so downstream services join the same distributed trace.
Parameters
- options: ClientTracingMiddlewareOptions = {}
Returns ClientMiddleware
Example
```
import { createClient } from '@cleverbrush/client';
import { clientTracingMiddleware } from '@cleverbrush/otel/client';

const client = createClient(api, {
    baseUrl: 'http://service-b:3000',
    middlewares: [clientTracingMiddleware()]
});
```
- Defined in client.ts:254