rega found ?card= throwing "Cannot read properties of null (reading 'country')" at the back
button. Card mode had no `selected` — the country — and the sheet reads selected.* in
FOURTEEN places, so guarding the one line rega pointed at would have left thirteen. The card
already knows its country, so `selected` is populated from it and every existing read is
satisfied; the curated-analysis block stays hidden on its own hasCurated test because a card
carries none of those fields. The back button is also hidden in card mode: it would have
opened a country sheet with no pins behind it.
The lesson is mine and worth the line. I shipped this having measured the shards, the byte
saving, the addressing and the card contents — 400 slugs resolving, a tier-0 and a tier-2
card correct — and reported it as done. Every one of those checks passed on a feature that
rendered nothing, because I cannot launch a browser and did not say that the render was
therefore unverified. Data being right is not the feature working.
So the gate grows the arm that would have caught it: a headless mount of ?card=<slug> from
the roster, asserting the page renders more than 400 characters and names the group, plus an
unknown slug that must still render. rega runs it (browser gates are rega's), which is
exactly why it belongs in the gate rather than in my own ad-hoc runs.
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