docs(r2-02): correct WriteIdempotentAttribute's unwired claim; disable Write/Ack retry authoring cells (S-8)

src/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions/WriteIdempotentAttribute.cs

@@ -9,9 +9,11 @@ namespace ZB.MOM.WW.OtOpcUa.Core.Abstractions;
 /// <remarks>
 ///     Applied to tag-definition POCOs
 ///     (e.g. <c>ModbusTagDefinition</c>, <c>S7TagDefinition</c>, OPC UA client tag rows) at the
-///     property or record level. The <c>CapabilityInvoker</c> in <c>ZB.MOM.WW.OtOpcUa.Core.Resilience</c>
-///     reads this attribute via reflection once at driver-init time and caches the result; no
-///     per-write reflection cost.
+///     property or record level. <b>Reserved for the per-tag opt-in; NOT yet consulted</b> (R2-02/S-8) —
+///     the dispatch site (<c>DriverInstanceActor.HandleWriteAsync</c>) currently treats every write as
+///     non-idempotent, so no tag retries a write today. Threading tag-definition metadata to the dispatch
+///     seam is the documented forward path; when it ships, the <c>CapabilityInvoker</c> non-idempotent arm
+///     and the parser's Write/AlarmAcknowledge no-retry clamp are the two sites that relax.
 /// </remarks>
 [AttributeUsage(AttributeTargets.Property | AttributeTargets.Class | AttributeTargets.Struct, AllowMultiple = false, Inherited = true)]
 public sealed class WriteIdempotentAttribute : Attribute