OpenTelemetry Express Instrumentation (Enhanced)

opentelemetry-instrumentation-express is an enhanced instrumentation library for the `express` web framework, designed to integrate seamlessly with OpenTelemetry for Node.js applications. Currently at version 0.41.0, it is actively maintained and part of the `aspecto-io/opentelemetry-ext-js` project, which sees frequent updates. This package differentiates itself from the standard `@opentelemetry/instrumentation-express` by providing more granular and accurate route information through custom span attributes like `express.route.full`, `express.route.configured`, and `express.route.params`, which capture the full path and parsed parameters. It also tracks `express.unhandled` requests, offering better insights into unhandled routes and 404s. The instrumentation supports Express versions `^4.9.0` and is suitable for detailed tracing of Express applications where precise route context is crucial for observability.