docs: fill missing XML docs and strip tracking IDs from src comments

Clears CommentChecker findings in src/ (3,280 -> 209, the remainder being false
positives like PLC-5/IEEE-754/M0.0) by adding missing summaries/params/returns,
normalising inheritdoc usage, and removing Gitea/review tracking IDs while keeping
the rationale they annotated. Comment-only: comment-stripped sources are identical
to the parent commit.

src/Core/ZB.MOM.WW.OtOpcUa.Core.ScriptedAlarms/ScriptedAlarmSource.cs

@@ -81,7 +81,7 @@ public sealed class ScriptedAlarmSource : IAlarmSource, IDisposable
     {
         if (_disposed) return;
 
-        // #478 — QualityChanged is a source-quality annotation, not a Part 9 state change. It is delivered
+        // QualityChanged is a source-quality annotation, not a Part 9 state change. It is delivered
         // out of band via the dedicated WriteAlarmQuality node path; surfacing it here would fabricate a
         // phantom AlarmEventArgs that materializes / historizes a condition. Swallow it.
         if (evt.Emission == EmissionKind.QualityChanged) return;