V1: 同步 8/20 修正后最新 study_logs (iPad 回写/后续进度)

diff --git a/backend/db/bcd.db b/backend/db/bcd.db
index ed30f862501ab5658f92a4dc364865ac4f82eaf1..3e22b2e44094b1999ab63775eb29cedb4da4b931 100644 (file)
Binary files a/backend/db/bcd.db and b/backend/db/bcd.db differ