OpenTelemetry-Native Android: Wiring OTel SDK to Compose Navigation for Distributed Trace Propagation Without the APM Tax

Instrumenting Jetpack Compose Navigation with OpenTelemetry's Android SDK — span creation at nav graph transitions, W3C trace-context propagation through Ktor HTTP client headers, baggage for user session correlation, and the sampling strategy that keeps your Grafana Tempo bill under $50/month at 10M events