fix: 恢复 G55 服务端进度(被误 git checkout 删除的 study+test, 2026-08-18)

diff --git a/backend/db/bcd.db b/backend/db/bcd.db
index 14cc0f93f7a06217dc8a071d622d76662b82c0c4..47f8d79f21affb2c270c5d63fa3f18a05b13517e 100644 (file)
Binary files a/backend/db/bcd.db and b/backend/db/bcd.db differ