core&ui: add discussion history (#450)

Co-authored-by: 无限UCW <45730483+wuxianucw@users.noreply.github.com>
Co-authored-by: undefined <i@undefined.moe>

packages/migrate/scripts/vijos.ts

@@ -63,7 +63,6 @@ const tasks = {
                         content: r.content,
                         owner: r.owner_uid,
                         ip: r.ip,
-                        history: [],
                     };
                     res.push(drrdoc);
                 }