docs(localdb): Phase 1 truth pass

Task 13.

SiteEventLogger's XML doc said 'Not replicated to standby. On failover, the new
active node starts a fresh log.' That is now false and was the exact behaviour
Phase 1 set out to fix.

OperationTrackingOptions.ConnectionString and SiteEventLogOptions.DatabasePath
marked MIGRATION-ONLY: nothing reads them but SiteLocalDbLegacyMigrator, and
they are safe to delete from a config once a node has migrated.

ScadaBridge CLAUDE.md gains a consolidated-site-database entry covering the
GUID/opaque-token contract change, the migration-only keys, the incidental
CWD-outside-the-volume data-loss fix, the fail-closed default-OFF replication
posture, and the fact that ZbTelemetryOptions.Meters is a silent allowlist.

scadaproj CLAUDE.md's LocalDb row goes from 'no app adoption yet' to the honest
current state, per the component-status-honesty convention: ScadaBridge Phase 1
only, on an UNMERGED branch, replication live-proven on the rig's site-a pair
ONLY, default-OFF everywhere else, Phase 2 not started, no other app adopted, no
production deployment replicating.

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

src/ZB.MOM.WW.ScadaBridge.SiteRuntime/Tracking/OperationTrackingOptions.cs

@@ -7,9 +7,12 @@ namespace ZB.MOM.WW.ScadaBridge.SiteRuntime.Tracking;
 public class OperationTrackingOptions
 {
     /// <summary>
-    /// Full ADO.NET connection string for the SQLite database (e.g.
-    /// <c>"Data Source=site-tracking.db"</c>). Tests use the
-    /// <c>Mode=Memory;Cache=Shared</c> form to keep the database in-memory.
+    /// MIGRATION-ONLY as of LocalDb Phase 1. <see cref="OperationTrackingStore"/> no longer
+    /// reads this: the tracking table lives in the consolidated site database at
+    /// <c>LocalDb:Path</c>. The only remaining consumer is
+    /// <c>SiteLocalDbLegacyMigrator</c>, which uses it to locate a pre-Phase-1
+    /// <c>site-tracking.db</c> and copy it in once. Safe to delete from a config once that
+    /// node's migration has run.
     /// </summary>
     public string ConnectionString { get; set; } = "Data Source=site-tracking.db";