For Training

The short version

No training material needs to change. This PR has no user-facing surface — no new screen, button, setting, or workflow exists for clinic staff to learn.

The one audience this might matter to: engineers previewing branches

If any training content covers how engineers or QA get a preview link for a branch under review, it's worth knowing (not as a "how to" but as background context) that:

• Preview builds should now use noticeably less memory on the shared build host and,

once a branch's build cache is warm, should come up faster on repeat rebuilds of the same branch.

• Nothing about how someone requests or opens a preview link changes — the

optimization is entirely inside the build step, invisible to whoever is waiting for the link.

There's nothing else to demonstrate step-by-step: there is no new UI flow to walk someone through.