USR369 direction: start with Daily, tell all data-taking systems they wire this themselves. Built Daily-Mileage-Events-Log.xlsx locally (openpyxl, header row matching original SOP-DATA-BACKUP.md scaffold) and confirmed file_write_web.php preserves binary correctly via urlencoded POST (corrects K296 -- only file-reader.php's read path is lossy, write path is fine). Wrote SOP-DAILY-LOG.md v1.0 mirroring SOP-KITCHEN-LOG.md's already-proven dual-write pattern. Registered in BACKUP-REG.md and SOP-INDEX.md v2.4. Filed T761 to Daily (ownership handoff for ongoing dual-writes). Broadcast msg 887 to Finance/Health/Inner/Travel (60,70,90,95) directing them to replicate the Kitchen/Daily pattern themselves rather than wait for Master to build each one -- local-first, DB stays source of truth, Drive sync deferred to T758.