chore(release): v1.11.2 — Coach-memory controls, SSRF hardening, more pinnable metrics

Coach-memory management UI (review/forget durable facts), connect-time
DNS-rebinding pins on user/operator-overridable outbound hosts, eight
additional pinnable dashboard metrics, plus a rollup write-race fix and
fast-path source-priority amortisation.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

docs/api/openapi.yaml

@@ -1,7 +1,7 @@
 openapi: 3.1.0
 info:
   title: HealthLog API
-  version: 1.11.1
+  version: 1.11.2
   description: >-
     Self-hosted personal-health-tracking PWA — public API surface for the iOS native client and external ingest.