docs(xmldoc): fill missing XML docs + strip tracking-ID comments across src

Adds <summary>/<param>/<returns>/<inheritdoc> where missing and removes
project bookkeeping IDs (task/tracking refs) from shipped code comments,
so the docs read cleanly and CommentChecker is quiet except for known
false positives (PLC/protocol terms, event/IEqualityComparer inheritdoc).
Doc/comment-only; no logic changed; solution builds clean.

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Historian.Gateway/GatewayHistorianDataSource.cs

@@ -133,18 +133,6 @@ public sealed class GatewayHistorianDataSource : IHistorianDataSource, IAsyncDis
     }
 
     /// <inheritdoc />
-    /// <remarks>
-    ///     Depends on the target gateway running with <c>RuntimeDb:EventReadsEnabled=true</c> (the
-    ///     SQL alarm-history path). The <paramref name="sourceName"/> is passed through to the
-    ///     gateway, but its SQL <c>ReadEvents</c> source filter may not be present yet — so this
-    ///     adapter also filters the mapped events by <see cref="HistoricalEvent.SourceName"/>
-    ///     client-side (defensive; remove once the server filter is confirmed). The
-    ///     <paramref name="maxEvents"/> cap is enforced client-side by early stream termination:
-    ///     a non-positive value applies no client cap (the gateway may still apply its
-    ///     <c>EventReadMaxRows</c>); a positive cap stops at N and sets a non-null
-    ///     <see cref="HistoricalEventsResult.ContinuationPoint"/> iff at least one further matching
-    ///     event existed (the Core.Abstractions-009 truncation signal).
-    /// </remarks>
     public async Task<HistoricalEventsResult> ReadEventsAsync(
         string? sourceName, DateTime startUtc, DateTime endUtc, int maxEvents,
         CancellationToken cancellationToken)
@@ -169,7 +157,7 @@ public sealed class GatewayHistorianDataSource : IHistorianDataSource, IAsyncDis
                 }
 
                 // One more matching event arriving once the cap is full means the result is
-                // truncated — stop draining and flag it (Core.Abstractions-009).
+                // truncated — stop draining and flag it.
                 if (hasCap && collected.Count == maxEvents)
                 {
                     truncated = true;
@@ -180,7 +168,7 @@ public sealed class GatewayHistorianDataSource : IHistorianDataSource, IAsyncDis
             }
 
             RecordOutcome(success: true, error: null);
-            // A non-null, opaque token signals truncation to the caller (Core.Abstractions-009).
+            // A non-null, opaque token signals truncation to the caller.
             // The gateway has no resumable cursor, so the token's contents carry no paging state —
             // its presence alone is the "more events exist" signal. A fresh array per call keeps it
             // from being shared/mutated.