Integrate log handlers for logging to Axiom

[taesungh]

Back in May 2024, Vercel announced that Log Drains are now generally available and restricted the usage on Hobby plans

Log Drains are only available on Pro and Enterprise plans. Existing Hobby customers may continue to use Log Drains as configured, but no further usage or configuration is available.

This means we cannot create a new log drain for the IrvineHacks 2025 project on Vercel. We could try and swap with last year's project, but there's no guarantee that will work cleanly with renaming the projects, and that doesn't seem like a sustainable long-term solution (maybe Vercel forcefully disables the existing log drains in the future).

We previously used Axiom which has a Personal plan providing log retention for 30 days along with nice monitoring features such as streaming, querying, and alerting. Perhaps it might be good to invest in another solution with more permanent log retention, but Axiom was decently convenient and free to use. To continue using this with new Vercel projects, we'll need to manually connect Axiom's integrations to the Next.js app and the Python serverless function for the API.

For the Next.js app

• Install next-axiom and add the necessary middleware
• Include the AxiomWebVitals component in the root layout
• Update the server-side console.error message in getUserIdentity.ts to use a Logger from next-axiom

For the Python API

• Install axiom-py
• Add an instance of AxiomHandler as a handler to the root logger in index.py

[taesungh]

Looks like next-axiom has a peer dependency of next>=14.0, but we haven't completed #403 yet. Will see how far I can get with the current v13.5.6.

[taesungh]

Update: considering just temporarily paying for Vercel Pro tier for two months since the interim approach from #487 needs some more work to get nicer contextual data.

[taesungh]

Decided for now we'll just swap back the two projects (new and last year's) since we still have the previously created log drain (for now, who knows for how much longer). For next year, would be convenient to just consider paying for good logs during the two months we need them.