docs+ui: backfill XML doc comments and finish dashboard layout pass

Adds missing <summary>/<param> XML docs across 99 server, worker, and test
files so CommentChecker reports zero issues (TreatWarningsAsErrors needs the
analyzer clean). Bundles in WIP dashboard work: NavSection extraction,
MainLayout/site.css/js styling alignment, and DashboardOptions/Auth tweaks.

src/ZB.MOM.WW.MxGateway.Worker/MxAccess/IMxAccessAlarmConsumer.cs

@@ -45,6 +45,7 @@ public interface IMxAccessAlarmConsumer : IDisposable
     ///     name). Subscribe does not start any polling of its own; the caller
     ///     drives polls explicitly via <see cref="PollOnce"/>.
     /// </summary>
+    /// <param name="subscription">The subscription expression (e.g., <c>\\HOST\Galaxy!Area</c>).</param>
     void Subscribe(string subscription);
 
     /// <summary>
@@ -53,6 +54,13 @@ public interface IMxAccessAlarmConsumer : IDisposable
     ///     user / node / domain / full-name and the comment land atomically
     ///     with the ack transition in the alarm-history log.
     /// </summary>
+    /// <param name="alarmGuid">The alarm GUID.</param>
+    /// <param name="ackComment">The acknowledgment comment.</param>
+    /// <param name="ackOperatorName">The operator name.</param>
+    /// <param name="ackOperatorNode">The operator node.</param>
+    /// <param name="ackOperatorDomain">The operator domain.</param>
+    /// <param name="ackOperatorFullName">The operator full name.</param>
+    /// <returns>The AVEVA-native status code.</returns>
     int AcknowledgeByGuid(
         Guid alarmGuid,
         string ackComment,
@@ -68,6 +76,15 @@ public interface IMxAccessAlarmConsumer : IDisposable
     ///     <see cref="AcknowledgeByGuid"/>, used when the caller has the
     ///     human-readable reference but not the canonical GUID.
     /// </summary>
+    /// <param name="alarmName">The alarm name.</param>
+    /// <param name="providerName">The provider name.</param>
+    /// <param name="groupName">The group name.</param>
+    /// <param name="ackComment">The acknowledgment comment.</param>
+    /// <param name="ackOperatorName">The operator name.</param>
+    /// <param name="ackOperatorNode">The operator node.</param>
+    /// <param name="ackOperatorDomain">The operator domain.</param>
+    /// <param name="ackOperatorFullName">The operator full name.</param>
+    /// <returns>The AVEVA-native status code.</returns>
     int AcknowledgeByName(
         string alarmName,
         string providerName,