彭峰 f533fe5716 fix(teaching): make review and training feedback optional text vor 1 Woche
..
design-qa 601bdc7231 fix: unify student read-only vocabulary access vor 1 Monat
features ecf7098c2b fix(teaching): restore same-day lesson start with legacy servers vor 1 Woche
migration f533fe5716 fix(teaching): make review and training feedback optional text vor 1 Woche
qa 2eb3ab611f feat(admin): manage operator accounts and restore legacy admin access vor 1 Monat
schema c662ca0168 fix: wrap cloud function business params vor 2 Monaten