fix(tests): remove void operator from consumer fixture (sonarjs/void-use)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: skulidropek

packages/app/tests/consumer/index.ts

@@ -18,6 +18,5 @@ type Paths = {
 
 const client = createClientEffect<Paths>()
 
-// Verify .GET exists and returns something (compile-time check only)
-const _result = client.GET("/health")
-void _result
+// Verify .GET exists and returns something (compile-time only)
+client.GET("/health")