Railway Log Drain support for Sentry Logging

You can now send structured logs to Sentry! See the docs [here](https://docs.sentry.io/product/explore/logs).

This issue tracks support log drains from Railway. If you're interested in Railway Log Drain support, please react to this issue and leave a comment about your use case. That will help us prioritize this accordingly.

We should probably do something similar to https://github.com/FerretCode/locomotive / https://railway.com/deploy/jP9r-f

Start by reviewing Sentry's structured logging documentation and the linked Locomotive project and Railway deployment example. Determine the existing Sentry log-drain entry points before defining the integration; done means Railway Log Drains can deliver structured logs to Sentry.

Written by the indexing model from the issue text.