distinct new boardIds: 7

=== menuCd가 시트에 이미 행으로 존재 (2) — 기존행 콘텐츠 가능성 ===
BBS_0000005 menuCd=DOM_000000101003001000 menuRow=r22 parents=[22] label='공고 안내' ncat=1
BBS_0000016 menuCd=DOM_000000101008004000 menuRow=r37 parents=[42, 43, 44] label='자료실' ncat=1

=== menuCd도 시트에 없음 = 진짜 누락 (5) ===
BBS_0000007 menuCd=DOM_000000101003003000 menuRow=NONE parents=[22] label='자료실' ncat=1
BBS_0000235 menuCd=DOM_000000903000000000 menuRow=NONE parents=[139] label='고시' ncat=1
BBS_0000236 menuCd=DOM_000000903002000000 menuRow=NONE parents=[139] label='교육청지침' ncat=1
BBS_0000544 menuCd=DOM_000000101002004000 menuRow=NONE parents=[19] label='자료실' ncat=1
BBS_0000768 menuCd=DOM_000000902004000000 menuRow=NONE parents=[138] label='규칙' ncat=4