0914cf0a75
Internal (SLM detail page): live alarm-state badge in the Alerts header
(● N active / ✓ all clear), a History list of fired events (onset → clear, peak
dB, ack status) with an Ack button, refreshed every 20s. Reads the existing SLMM
/alerts/events + /ack via the proxy.
Portal (client, read-only, scoped): new GET /portal/api/location/{id}/events —
ownership-gated, returns a scrubbed projection (rule_name/metric/threshold/onset/
peak/clear/status only; no internal ids or ack-by) plus an `active` count. The
location page shows a red "Currently above threshold" banner when active and a
read-only breach history, polled every 20s. No ack on the client side.
Verified: portal.py compiles; both scripts balance; both templates parse.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>