docs(config): correct OtOpcUa draft-validation description

The C# DraftValidator/DraftSnapshot has NO live caller in OtOpcUa src/ (verified
repo-wide) — it is dormant complement code. The enforced pre-publish draft
validation runs DB-side in the sp_ValidateDraft stored procedure (Status='Draft'
-> sp_PublishGeneration lifecycle). Reframe across current-state/SPEC/GAPS/README/
CLAUDE.md from 'runtime draft validation' + a false publish-pipeline caller to
'dormant managed validator; enforcement is DB-side'. Out-of-scope conclusion
for ZB.MOM.WW.Configuration is unchanged.

components/configuration/README.md

@@ -68,8 +68,8 @@ code-verified detail and its adoption plan.
   `HealthMonitoringOptions`, `AuditLogOptions`, `NodeOptions`, …) and all of their domain rules —
   worker `.exe` paths, split-brain strategy, Akka heartbeat/threshold ordering, audit retention
   bounds, gRPC-port-vs-remoting-port topology, etc.
-- OtOpcUa's runtime draft/snapshot validation (`DraftValidator` + `DraftSnapshot`) — config-content
-  validation, **out of scope** entirely.
+- OtOpcUa's draft/generation-content validation (DB-side `sp_ValidateDraft`; the C# `DraftValidator`
+  / `DraftSnapshot` is dormant, no `src/` caller) — config-content validation, **out of scope** entirely.
 
 ## Package structure