Fills the gaps in the HUD and the body cards, distinguishes measured
quantities from derived ones, raises an object card over the live system view
instead of navigating away from it, and adds a Junie code-review workflow
beside CI.
Five commits kept separate: the feature, the review follow-up collapsing
bodyReadouts, a doc-comment fix, the review workflow, and the fix that stops
that workflow failing a pull request when no API key is set.
Senrokai