feat(localdb): register the consolidated site database in the composition root

Task 3. Site nodes now open one ZB.MOM.WW.LocalDb-managed database holding
OperationTracking and site_events as replicated tables.

SiteLocalDbSetup.OnReady applies both schemas and then RegisterReplicated's them.
That order is load-bearing and easy to get silently wrong: capture is
trigger-based CDC, so rows written before registration are never captured or
snapshotted - they would be invisible to the peer forever, with no error anywhere.

Storage ships UNCONDITIONALLY, no feature flag. With no peer configured LocalDb is
just a local SQLite file, so this is behaviour-equivalent to what site nodes do
today. Replication is opt-in and lands in Program.cs (Task 7), which owns the gRPC
host the sync endpoint needs.

Config: LocalDb:Path added to all EIGHT site-node appsettings (the plan said six -
docker-env2's site-x pair exists too), plus the dev template and the wonder-app-vd03
production sample. All ten are required, not optional: LocalDbOptions.Path is
validated with ValidateOnStart, so a site node without it fails fast at startup.
That is the desired posture, and it is what caught ActorPathTests - the one Host
fixture that actually starts a host - whose config now sets the path too.

Note the path choice fixes an existing data-loss bug in passing: site-tracking.db
and site_events.db both defaulted to CWD-relative paths (/app/...), outside the
mounted volume, so they were silently lost on every container recreate. The
consolidated database lives on /app/data.

Tests are container-built against the REAL SiteServiceRegistration.Configure, not a
hand-assembled ServiceCollection - this family has shipped three wiring defects that
only a real graph would catch (inert Secrets replicator 0.2.0, singleton deadlock
0.2.2, Secrets.Ui missing IAuditWriter). They assert the library's own view of what
is registered rather than that we called the right method.

Verified (all after the change):
  dotnet build ZB.MOM.WW.ScadaBridge.slnx -> 0 Error(s), 0 Warning(s)
  Host.Tests            -> 294 passed (5 new, red-first)
  SiteRuntime.Tests     -> 530 passed
  CentralUI.Tests       -> 925 passed
  Commons.Tests         -> 684 passed
  Communication.Tests   -> 312 passed
  SiteEventLogging.Tests-> 70 passed

Claude-Session: https://claude.ai/code/session_01BL2Vu1ESDQ9SCN4gVKkdts

docker/site-a-node-a/appsettings.Site.json

@@ -57,5 +57,13 @@
     "Logging": {
       "MinimumLevel": "Information"
     }
+  },
+  // Consolidated site database (LocalDb Phase 1): OperationTracking + site_events.
+  // On the mounted /app/data volume so it survives container recreate - unlike the
+  // legacy site-tracking.db / site_events.db, which defaulted to CWD-relative paths
+  // outside the volume and were lost on every recreate.
+  // Replication is opt-in and configured separately; absent = local-only.
+  "LocalDb": {
+    "Path": "/app/data/site-localdb.db"
   }
 }

docker/site-a-node-b/appsettings.Site.json

@@ -57,5 +57,13 @@
     "Logging": {
       "MinimumLevel": "Information"
     }
+  },
+  // Consolidated site database (LocalDb Phase 1): OperationTracking + site_events.
+  // On the mounted /app/data volume so it survives container recreate - unlike the
+  // legacy site-tracking.db / site_events.db, which defaulted to CWD-relative paths
+  // outside the volume and were lost on every recreate.
+  // Replication is opt-in and configured separately; absent = local-only.
+  "LocalDb": {
+    "Path": "/app/data/site-localdb.db"
   }
 }

docker/site-b-node-a/appsettings.Site.json

@@ -57,5 +57,13 @@
     "Logging": {
       "MinimumLevel": "Information"
     }
+  },
+  // Consolidated site database (LocalDb Phase 1): OperationTracking + site_events.
+  // On the mounted /app/data volume so it survives container recreate - unlike the
+  // legacy site-tracking.db / site_events.db, which defaulted to CWD-relative paths
+  // outside the volume and were lost on every recreate.
+  // Replication is opt-in and configured separately; absent = local-only.
+  "LocalDb": {
+    "Path": "/app/data/site-localdb.db"
   }
 }

docker/site-b-node-b/appsettings.Site.json

@@ -57,5 +57,13 @@
     "Logging": {
       "MinimumLevel": "Information"
     }
+  },
+  // Consolidated site database (LocalDb Phase 1): OperationTracking + site_events.
+  // On the mounted /app/data volume so it survives container recreate - unlike the
+  // legacy site-tracking.db / site_events.db, which defaulted to CWD-relative paths
+  // outside the volume and were lost on every recreate.
+  // Replication is opt-in and configured separately; absent = local-only.
+  "LocalDb": {
+    "Path": "/app/data/site-localdb.db"
   }
 }

docker/site-c-node-a/appsettings.Site.json

@@ -57,5 +57,13 @@
     "Logging": {
       "MinimumLevel": "Information"
     }
+  },
+  // Consolidated site database (LocalDb Phase 1): OperationTracking + site_events.
+  // On the mounted /app/data volume so it survives container recreate - unlike the
+  // legacy site-tracking.db / site_events.db, which defaulted to CWD-relative paths
+  // outside the volume and were lost on every recreate.
+  // Replication is opt-in and configured separately; absent = local-only.
+  "LocalDb": {
+    "Path": "/app/data/site-localdb.db"
   }
 }

docker/site-c-node-b/appsettings.Site.json

@@ -57,5 +57,13 @@
     "Logging": {
       "MinimumLevel": "Information"
     }
+  },
+  // Consolidated site database (LocalDb Phase 1): OperationTracking + site_events.
+  // On the mounted /app/data volume so it survives container recreate - unlike the
+  // legacy site-tracking.db / site_events.db, which defaulted to CWD-relative paths
+  // outside the volume and were lost on every recreate.
+  // Replication is opt-in and configured separately; absent = local-only.
+  "LocalDb": {
+    "Path": "/app/data/site-localdb.db"
   }
 }