split: 回填 study_logs.new_group_id 并回退 G67 前拆分组，进度与 V1 对齐

diff --git a/backend/db/bcd.db b/backend/db/bcd.db
index 2d262433b68a43bce2ed0e3cf958ffea4eafacb6..097cd817c84428c3e6fb2542b6e6ab3c4831d097 100644 (file)
Binary files a/backend/db/bcd.db and b/backend/db/bcd.db differ