Applied as-is. The shop bar's two-tap arm for the level button is now lv:<level>. A successful upgrade, including the D shortcut, changes the level and drops that arm, so the next click only selects the new level. A freeze at the same level keeps the confirm. Another card's arm is left alone, and D still upgrades immediately.
Tests: node --test test/ui/mock.e2e.test.js test/ui/playtest6-elite.test.js test/ui/playtest6-ui.test.js — 20 pass, 0 fail. The mock e2e suite skipped because SP_E2E is unset. eslint on the touched files: 0 errors (one pre-existing unused-assignment warning in mock.e2e.test.js).