Split the schematic tooling by audience: QElectroTech (IEC 60617,
versionable XML) for the 48V/230V/PV installation folios that
electricians and inspectors read, KiCad kept for in-house boards
(monitoring, solar-deck interlock). Seed qet/ with the folio plan
and conventions; record the decision.
Document the real bus.saillant.cc exposure chain (cloudflared ->
Traefik -> Tower nginx pinned by digest) now that Task 7 hosting
and Task 8 deploy.sh have been validated end-to-end.