feat: add example implementation of OpenTelemetry SDK

[getlarge]

On the backend apps, create a tracing module imported before everything else in main. Init OTel SDK with instrumentations library for the following modules:

• Net
• HTTP
• Fastify (if exists?)
• MongoDB
• BullMQ
• AMQP lib

Create a service in docker.compose with Jaeger to export traces to.

[getlarge]

depends on #19 to use opentelemetry-instrumentation-bullmq