OpenTelemetry

[vicksey]

Summary

• Adding initial OpenTelemetry browser instrumentation to AA frontend.
• It sets up a WebTracerProvider which auto captures document load, user interactions, and network requests and exports them via OTLP HTTP to a local Jaeger instance (dev for now).
• Foundation for observability once the Next.js migration is complete

Test Plan

If you wanna try it out locally for now

1. Run Jaeger locally
   docker run -d --name otel-jaeger -p 16686:16686 -p 4318:4318 jaegertracing/all-in-one:latest
2. Get new dependencies
   pnpm install
pnpm start:aa
3. Open Jaeger http://localhost:16686/ (click around aa localhost to create spans)
4. Should see some basic telemetry data appear

Issues

Closes #1256

Future Followup

• We need to eventually deploy an actual otel collector and jaeger on AWS so it all traces and can actually be used outside of local
• Once connected to AWS we should be able to get full visibility of traces from frontend to backend i believe.
• You can add custom spans for specific features like course search and schedule rendering