Multi-day session (08/24-09/01/26): resolved a Finance count-mismatch bug report (D840, false alarm, no duplication), cleared full backlog, logged a week's worth of drive/gym/errand activity with ODO readings, investigated MPG and traced the real fill-up ledger to Finance's items table, built and broadcast a new SOP-STANDARD-MILEAGE.md with a supporting standard-route table, fixed a miscalendared event, self-caught and corrected a broadcast mistake.

1. Resolved actionability blocker via direct data investigation (D840). 2. Cleared 8 community backlog items + 1 transfer, re-verified both queues at 0. 3. Logged ODO trips: 08/24 home to EOS Redlands (23mi), 08/29 home to EOS Montclair to Grandma's leg to gas to The Hat (with gap explanation tied to Vilma/Markus commuting), 08/30 gas receipt image processed and reconciled to the 08/29 fill, 09/01 home to EOS Redlands (24mi). 4. MPG investigation: found real gas ledger lives in Finance's items table not Daily's own log; computed a 570mi full-to-full window (07/14 to 08/06) giving a 17.0-25.7 MPG range pending USR369 resolving a 07/24 duplicate-entry ambiguity. 5. Built SOP-STANDARD-MILEAGE.md (3+ sample threshold, ESTIMATED marking, real reading always overrides), added to SOP-INDEX.md, computed and wrote the standard-route table to knowledge-50.md, broadcast platform-wide. 6. Caught and corrected own mistake where a broadcast attempt had overwritten Daily COMMS status field instead of sending a message. 7. Fixed a Google Calendar walkthrough event USR369 caught was created on the wrong calendar.