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docs(sitestream): document aggregated live alarm stream + resolve deferred #10 (plan #10 T8)

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Alarm Summary is now live-cache-driven via a transient per-site central
live alarm cache (ISiteAlarmLiveCache) fed by a site-wide, alarm-only
SubscribeSite gRPC stream (seed-then-stream), with the 15s poll retained
as fallback + NotReporting authority. No persisted central alarm store
([PERM]). Updated Component-CentralUI, Component-Communication (new §6.1
+ SubscribeSite RPC), M7 design (T13 delivered note), native-alarms
[PERM] note, stillpending follow-up note, CLAUDE.md, and moved register
row #10 to Resolved (left #22 in place for the sibling branch).

Claude-Session: https://claude.ai/code/session_01MtdgwpEeCUn6cUA5f1LMPj
This commit is contained in:
Joseph Doherty
2026-07-10 12:49:44 -04:00
parent a8278f65d0
commit 5078d25302
7 changed files with 29 additions and 10 deletions
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docs/plans/2026-05-29-native-alarms-design.md
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@@ -21,7 +21,7 @@ These are **mirrored** alarms — the source is the source of truth — which is
| State model scope | **Unified** A&C-style state model for *all* alarms (computed + native) |
| Interactivity | **Read-only mirror** — display source-reported state; no acking/shelving from ScadaBridge, no command relay, no operator identity captured by ScadaBridge (source-supplied operator user/comment *are* displayed for native alarms) |
| Binding | Instance declares a `NativeAlarmSource` (connection + source ref); conditions under it are **discovered at runtime**, keyed by source reference |
| State location | **Site-only**, persisted to SQLite (survives restart/failover); central **queries live** (snapshot + live stream); **no central tables, no central history** |
| State location | **Site-only**, persisted to SQLite (survives restart/failover); central **queries live** (snapshot + live stream); **no central tables, no central history** (the M9 aggregated live alarm stream — `2026-07-10-aggregated-live-alarm-stream-plan.md` — honors this: a **transient, in-memory** central cache only, nothing persisted) |
| MxGateway transport | Gateway session-less `StreamAlarms` feed |
| OPC UA transport | Alarms & Conditions events + `ConditionRefresh` snapshot |
| Site actor structure | New `NativeAlarmActor` child of `InstanceActor`, peer to computed `AlarmActor`s (Approach 1) |