docs(wiki): industry survey of parking tariff systems + session log

New reference page tariff-industry-survey.md (2026-07 web research):
field taxonomy — per-started-increment hourly (per-minute tried and
rolled back in practice), degressive ladders, day caps, up-to matrices,
day tickets, evening/overnight packages, event rates, early bird
(entry-time-conditioned), day/night + weekend/holiday/seasonal windows,
category pricing, contracts, merchant validations (amount/percent/
time-credit/re-rate), SFpark-style dynamic pricing. Coverage map: our
engine expresses everything a staffed single lot advertises; real gaps =
early bird (the pick-table-by-entry-time future design, same mechanism
as weekend menus) and validation overlays; anti-features = per-minute
billing + dynamic pricing. Indexed + logged.

Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V

wiki/log.md

@@ -2342,3 +2342,33 @@ read as a dead click on a slow open. Root cause of the slowness recorded as an o
 fold from the last z-report's signed expectedDrawerMinor forward. Also from this session: dev-DB
 migrations are MANUAL (pnpm db:migrate in packages/db) — a 500 "no such column" after pulling a
 migration means it was skipped; booth containers migrate on boot and are immune.
+
+## [2026-07-05] update | Camera health-check detail bucketed — device-monitor log noise fix
+
+The monitor logs + re-emits a device status only when state OR detail changes, but the camera
+probe's detail was the exact snapshot byte count — which differs on every JPEG frame, so healthy
+cameras "changed" on nearly every poll (a log line + websocket event each, inflating the freshly
+budgeted container logs). Camera healthCheck detail is now a stable power-of-two bucket
+("snapshot ≈16 KB" / "≈256 KB"; "<1 KB" stays exact as a suspicious-frame flag), so it moves only
+on a real shift (stream/resolution change, empty body). packages/devices camera.ts + 3 tests.
+
+## [2026-07-05] query | Industry survey: most-used parking tariff systems
+
+Web research filed as [[tariff-industry-survey]] (reference). Field taxonomy: linear-hourly per
+started increment (per-MINUTE tried and rolled back — Leuven), degressive ladders, day caps,
+grace; whole-stay prices (day tickets, up-to matrices, evening/overnight packages, event rates);
+entry-time-conditioned EARLY BIRD (enter-before cutoff, anti-arbitrage exit conditions); calendar
+windows (day/night, weekend/holiday, seasonal); category pricing; monthly contracts; merchant
+VALIDATIONS (amount/percent/time-credit/full-comp/re-rate); dynamic demand pricing (SFpark 60-80%
+occupancy banding — municipal/airport scale only). Coverage map: our engine expresses everything
+a staffed single lot advertises; the two real gaps are early bird (= the pick-table-by-entry-time
+future design, same mechanism as weekend menus) and validation overlays. Anti-features confirmed:
+per-minute billing, dynamic pricing.
+
+## [2026-07-05] update | Composer page gets the published-versions sidebar too
+
+The published-history sidebar built for the lab landed only there; the operator expected it on
+/setup/tariff as well. TariffComposer now mirrors it: right sidebar of published versions (name or
+effective date, active badge), click → formFromVersion loads it into the editor as the seed for
+the next publish (which, per the sidebar hint, always creates a NEW immutable version). Details on
+[[tariff]] (Composer section).