- rooms: parseRoomNumber 未知格式、楼层0、capacity ?? 测试 - occupancies: capacity undefined/null/0 fail-closed 防守测试 - schedules: startTime > endTime 拒绝测试 - attendance: 重叠检查按时间排序、raw[index] 移除测试 - expenses: 金额零/负/NaN 拒绝、period反转校验测试 5 modules, 40 tests, all passing