Forward otel traces to job-server or similar

We can use the jaeger exporter to forward otel json encoded trace data over HTTP to job-server.

e.g.

exporters:
  jaeger:
    endpoint: "http://localhost:14268/api/traces"
    protocol: "http"
    # The format of the payload to send. Can be "json" or "protobuf".
    # Default is "protobuf".
    format: "json"

Note: found via chatGPT.

This should be easy for job-server to parse and store somewhere.

This solves two limitations of using honeycomb:

1. we can retain this data longer than Honeycomb's two month retention period.
2. we can surface this data to users (Honeycomb API for this is behind Enterprise tier, and can only query last 7 days anyway)

Start with the Jaeger exporter configuration shown in the issue and review the job-server entry point that would receive it. Decide where JSON trace data should be parsed, stored, and surfaced; done means a defined end-to-end path that retains the traces and makes them available to users.