Remove UHPPOTE/ZKTeco; Dingtian is the only access driver

Neither UHPPOTE nor ZKTeco is used — the Dingtian relay controller was chosen
and verified. Remove their code and re-scope the wiki.

Code:
- delete access-uhppote.ts, uhppoted.d.ts, access.ts (zkteco/esp32-relay stubs),
  and the three uhppote-*.mjs hardware test scripts.
- remove the `uhppoted` npm dependency from @parking/devices and @parking/server.
- unregister uhppote/zkteco/esp32-relay from the driver registry; drop their
  exports. Catalog access drivers = dingtian only. Build green (5/5).
- refresh now-stale example comments (registry/interfaces/setup/api) to use
  current examples; keep the two "UHPPOTE blocker" references that explain why
  the precondition capability exists.

Wiki (kept pages, re-scoped):
- uhppote-controller, zkteco-controller -> rejected/historical with callouts;
  uhppote-vs-esp32 -> historical (detection-vs-prevention lens still useful).
- re-point all "current device" framing (standing-decisions, bom, overview,
  open-questions, device-registry, device-discovery, index) to dingtian-relay.
- transferable concepts (network-isolation, event-log-ingestion, barrier-not-a-
  door, threat-model) untouched. Raw source immutable. Links lint clean.

wiki/log.md

@@ -118,3 +118,16 @@ works. The [[access-controller-button-flow]] blocker is RESOLVED. Gotcha recorde
 (GET omits it) or the write silently no-ops. Added httpPort config field (port 8080 ≠
 default 80). Test script apps/server/scripts/dingtian-test.mjs. Next: input HTTP-push
 endpoint + wiring input→ticket→pulseOpen.
+
+## [2026-06-15] cleanup | Remove UHPPOTE/ZKTeco code; wiki → rejected/historical
+Neither UHPPOTE nor ZKTeco is used (Dingtian chosen). Removed their code:
+deleted access-uhppote.ts, uhppoted.d.ts, access.ts (zkteco/esp32 stubs), the
+three uhppote-*.mjs scripts; dropped the `uhppoted` npm dep from both packages;
+unregistered uhppote/zkteco/esp32-relay from the driver registry; updated example
+comments. Catalog access drivers now = dingtian only. Build green.
+Wiki: kept the pages but marked [[uhppote-controller]] + [[zkteco-controller]]
+rejected/historical, [[uhppote-vs-esp32]] historical; re-pointed all "current
+device" framing (standing-decisions, bom, overview, open-questions) to
+[[dingtian-relay]]; noted no current driver uses [[device-discovery]]. Transferable
+concepts (network-isolation, event-log-ingestion, barrier-not-a-door, threat-model)
+kept as-is. Links lint clean; raw source untouched (immutable).