Full-day Master session: Gdrive project (folder-share correction to all 11 systems, D-LEARN-FIRST research fixing token endpoint + adding retry/backoff, T758 bumped to high priority), general backup-strategy research (3-2-1 rule -- added restore-verification as new platform practice via SOP-BACKUP.md RULE 7), rolled out local-first dual-write spreadsheet pattern to Daily (pilot) and Health (fixed a real access failure at the gym, root-caused T480, escalated to Builder), corrected a false bug theory in records-api.php by reading actual source (real issue: unlocated voice-dictation-task pipeline T2515-T2526), fixed file-reader.php's binary-read corruption directly (T759 closed, base64 mode added and tested byte-perfect).

Verified all 11 Drive folders shared (corrected scope from 6). SOP-GDRIVE-SERVICE-ACCOUNT.md v1.0->v1.4. SOP-DATA-BACKUP.md v1.1->v1.2. SOP-BACKUP.md v1.0->v1.1 (new RULE 7). New: SOP-DAILY-LOG.md v1.0, SOP-HEALTH-LOG.md v1.0. Built and deployed Daily-Mileage-Events-Log.xlsx and Health-Gym-Log.xlsx (backfilled 133 rows). BACKUP-REG.md and SOP-INDEX.md updated for all new files/SOPs (SOP-INDEX now v2.5). Escalated T480 to Builder[20] with evidence. Fixed file-reader.php v1.0->v1.1 (base64 mode, T759 closed). Filed T759(closed)/T760/T761/T762. Bumped T758 to high priority. Updated Health's todo-70.md and Daily/Health governance. Media.db: 6 new research saves (M0009,M0010,M0014-M0016 plus M0004 confirmed). Knowledge.db: K296-K301 logged (including one self-correction, K298 correcting K296).