// Package obsx provides observability setup for the platform: metrics (Prometheus)
// and tracing (OpenTelemetry).
//
// # Quick Start
//
//	// Tracing
//	shutdown, err := obsx.SetupTracer(ctx, obsx.TracerConfig{
//	    ServiceName: "my-service",
//	    Endpoint:    "localhost:4317",
//	})
//	defer shutdown(ctx)
//
//	// Metrics
//	metrics := obsx.NewMetrics(obsx.MetricsConfig{Namespace: "myapp"})
//	reqCounter := metrics.Counter("requests_total", "Total requests", "method", "status")
//	http.Handle("/metrics", metrics.Handler())
package obsx