v0.4.1

The current contrib bridge (go.opentelemetry.io/contrib/bridges/otelzap) requires manual extraction of trace_id/span_id in middleware. The uptrace library (github.com/uptrace/opentelemetry-go-extra/otelzap) provides automatic OTel span correlation via Ctx(ctx) — span context is attached to OTel log records at emit time without manual extraction. Additionally:

• sdklog.LoggerProvider has no resource, so Kafka records lack service identity
• The same OTel resource used for TracerProvider should also be passed to the LoggerProvider
• logger.FromContext (which returns *zap.Logger) is replaced by logger.Ctx(ctx) (returns *otelzap.Logger with span context) across all services