harness/stage_cards.pyWrites STAGE CARDS/, one card per stage for the person
running it.
Each card: what the stage is for (one line per stage in the script),
the lines to type in order for every leg and dispatch, where an
interview point falls and how to talk at it, pausing, and the rule to
say nothing to the analyst inside a leg. Generated from
steps.tsv, the script's notes, arm.json and
DROPS/ORDER.tsv.
build.sh, once, at build.
Its docstring: "never edited by hand". Contract §4: "the operator's stage cards launch them one at a time."
Checked against: harness/stage_cards.py, harness/build.sh, CONTRACT-aggregator.md §4.