docs(audit): register Audit Log (#23) in the README component table

README.md

@@ -56,6 +56,7 @@ This document serves as the master index for the SCADA system design. The system
 | 20 | Traefik Proxy | [docs/requirements/Component-TraefikProxy.md](docs/requirements/Component-TraefikProxy.md) | Reverse proxy/load balancer fronting central cluster, active node routing via `/health/active`, automatic failover. |
 | 21 | Notification Outbox | [docs/requirements/Component-NotificationOutbox.md](docs/requirements/Component-NotificationOutbox.md) | Central component ingesting store-and-forwarded notifications into the `Notifications` audit table, with `NotificationOutboxActor` singleton dispatcher, per-type delivery adapters, retry/parking, status tracking, daily purge, and delivery KPIs. |
 | 22 | Site Call Audit | [docs/requirements/Component-SiteCallAudit.md](docs/requirements/Component-SiteCallAudit.md) | Central component auditing site cached calls (`ExternalSystem.CachedCall`/`Database.CachedWrite`) into the `SiteCalls` audit table, with `SiteCallAuditActor` singleton, telemetry ingest, periodic reconciliation, point-in-time KPIs, daily purge, and central→site Retry/Discard relay for parked calls. |
+| 23 | Audit Log | [docs/requirements/Component-AuditLog.md](docs/requirements/Component-AuditLog.md) | New central append-only AuditLog spanning every script-trust-boundary action (outbound API sync+cached, outbound DB sync+cached, notifications, inbound API). Site-local SQLite hot-path append + gRPC telemetry + central reconciliation; combined telemetry packet with Site Call Audit; central direct-write for Notification Outbox dispatch + Inbound API middleware; monthly partitioning, 365-day default retention. |
 
 ### Reference Documentation
 
@@ -90,6 +91,17 @@ This document serves as the master index for the SCADA system design. The system
 │  │ Mgmt     │  ◄── CLI (ClusterClient)              │
 │  │ Service  │      ManagementActor + Receptionist   │
 │  └──────────┘                                       │
+│  ┌──────────┐ ┌──────────┐ ┌──────────┐            │
+│  │   Ntf    │ │   Site   │ │  Audit   │ Observ. /   │
+│  │  Outbox  │ │   Call   │ │   Log    │ Audit area  │
+│  │ (#21)    │ │  Audit   │ │  (#23)   │             │
+│  │          │ │  (#22)   │ │          │             │
+│  └────▲─────┘ └────▲─────┘ └────▲─────┘            │
+│       │ ingests    │ ingests    │ ingests          │
+│       │ (S&F)      │ (telemetry)│ (telemetry +     │
+│       │            │            │  direct-write    │
+│       │            │            │  from Ntf Outbox │
+│       │            │            │  & Inbound API)  │
 │  ┌───────────────────────────────────┐              │
 │  │    Akka.NET Communication Layer   │              │
 │  │  ClusterClient: command/control   │              │