feat(gallery): add a live validation tally with an audit stepper

The index panel gains a Validation section: done / in progress / not done counts with a total, each row carrying a mini lamp dot in the matching state color. Every lamp click recounts, so the tally always mirrors the cards.

Clicking a row starts an audit of that state: the page jumps to the first matching card and a pill docks bottom-right showing the position (2/5 · next). Clicking the pill advances through the rest without scrolling back to the index, the x or Esc dismisses it, and the card list re-reads on every step so lamp changes mid-audit are picked up.

setV fires while its card is still detached from the document, so the running count lags the last card by one during the build. A final recount after all cards land closes the gap.

0 files changed, 0 insertions, 0 deletions