ok 1 - D1 new migrations apply cleanly to a database that already has rows
ok 2 - D2 applied migrations 001 and 002 were not edited
not ok 3 - D3 backfill loses no characters of any existing name
ok 4 - D4 users.name is still present and unchanged for the billing sync
ok 5 - D5 CSV export for existing users is byte-for-byte unchanged
ok 6 - D6 running migrate again is a no-op
ok 7 - D7 the existing createUser({ email, name }) call fills name and the new columns
ok 8 - D8 renameUser keeps name and the new columns in sync
