Troubleshooting and manual build guides for the platform

Ten faults encountered while migrating the platform were recorded only inside a working migration tracker, which is not something anyone reads to answer a question at the time it matters.

They are now a proper troubleshooting reference: what each fault looked like, what actually caused it, and what fixed it. A second guide covers building a machine by hand, for the cases where the usual automation is unavailable or does not apply, such as Windows machines and vendor appliances.