Tag the 17 open todos with their g15office task IDs, close 7 todos that
are already done or promoted to Phase 16.3, and record the sync rules
and the phase-to-task map in .planning/G15OFFICE.md.
- lagoon.Validate reports numeric min failures with the max message
- the lagoon README callback example sorts after the after-commit flush,
and the pivot Preload ordering claim does not hold
