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You are operating a Kubernetes cluster for a payment processing system. Several microservices are critical for the platform’s functionality, and ensuring visibility into inter-service communication is essential. Recently, users have reported occasional delays in transaction processing, but the root cause is unclear. You want to implement a system to provide detailed telemetry, including latency, request success/failure rates, and service dependencies, to help troubleshoot and optimize performance. Which service mesh feature would best support this requirement for improved observability?