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/MxAccessCommandExecutor.cs

@@ -46,6 +46,9 @@ public sealed class MxAccessCommandExecutor : IStaCommandExecutor
     /// optional — when null, alarm-side commands return an
     /// "alarm consumer not configured" diagnostic.
     /// </summary>
+    /// <param name="session">MXAccess session on the STA thread.</param>
+    /// <param name="variantConverter">Converter for MXAccess variant values to MxValue protobuf messages.</param>
+    /// <param name="alarmCommandHandler">Optional handler for alarm-side commands.</param>
     public MxAccessCommandExecutor(
         MxAccessSession session,
         VariantConverter variantConverter,
@@ -63,6 +66,10 @@ public sealed class MxAccessCommandExecutor : IStaCommandExecutor
     /// ReadBulk is exercised against a fake worker that pre-populates the
     /// value cache — the executor falls back to a no-op pump step.
     /// </summary>
+    /// <param name="session">MXAccess session on the STA thread.</param>
+    /// <param name="variantConverter">Converter for MXAccess variant values to MxValue protobuf messages.</param>
+    /// <param name="alarmCommandHandler">Optional handler for alarm-side commands.</param>
+    /// <param name="pumpStep">Action to pump Windows messages, or null for tests.</param>
     public MxAccessCommandExecutor(
         MxAccessSession session,
         VariantConverter variantConverter,