彭峰 ecf7098c2b fix(teaching): restore same-day lesson start with legacy servers hai 1 semana
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design-qa 601bdc7231 fix: unify student read-only vocabulary access hai 1 mes
features ecf7098c2b fix(teaching): restore same-day lesson start with legacy servers hai 1 semana
migration efd1a97d80 Guard payroll settlement on legacy sync and reconcile review rewards hai 3 semanas
qa 2eb3ab611f feat(admin): manage operator accounts and restore legacy admin access hai 1 mes
schema c662ca0168 fix: wrap cloud function business params hai 2 meses