docs: backfill XML documentation across 756 files

Adds <summary>, <param>, <typeparam>, and <inheritdoc/> tags to public
members surfaced by commentchecker — resolves 5,847 of 5,869 issues
(99.6%) across three /fixdocs passes.

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

@@ -31,14 +31,18 @@ public sealed class ScriptedAlarmSource : IAlarmSource, IDisposable
         = new(StringComparer.Ordinal);
     private bool _disposed;
 
+    /// <summary>Initializes a new instance of the <see cref="ScriptedAlarmSource"/> class.</summary>
+    /// <param name="engine">The scripted alarm engine to expose.</param>
     public ScriptedAlarmSource(ScriptedAlarmEngine engine)
     {
         _engine = engine ?? throw new ArgumentNullException(nameof(engine));
         _engine.OnEvent += OnEngineEvent;
     }
 
+    /// <summary>Occurs when an alarm event is raised by the engine.</summary>
     public event EventHandler<AlarmEventArgs>? OnAlarmEvent;
 
+    /// <inheritdoc />
     public Task<IAlarmSubscriptionHandle> SubscribeAlarmsAsync(
         IReadOnlyList<string> sourceNodeIds, CancellationToken cancellationToken)
     {
@@ -49,6 +53,7 @@ public sealed class ScriptedAlarmSource : IAlarmSource, IDisposable
         return Task.FromResult<IAlarmSubscriptionHandle>(handle);
     }
 
+    /// <inheritdoc />
     public Task UnsubscribeAlarmsAsync(IAlarmSubscriptionHandle handle, CancellationToken cancellationToken)
     {
         if (handle is null) throw new ArgumentNullException(nameof(handle));
@@ -56,6 +61,7 @@ public sealed class ScriptedAlarmSource : IAlarmSource, IDisposable
         return Task.CompletedTask;
     }
 
+    /// <inheritdoc />
     public async Task AcknowledgeAsync(
         IReadOnlyList<AlarmAcknowledgeRequest> acknowledgements, CancellationToken cancellationToken)
     {
@@ -104,6 +110,7 @@ public sealed class ScriptedAlarmSource : IAlarmSource, IDisposable
         return false;
     }
 
+    /// <summary>Releases resources used by the <see cref="ScriptedAlarmSource"/>.</summary>
     public void Dispose()
     {
         if (_disposed) return;
@@ -114,7 +121,10 @@ public sealed class ScriptedAlarmSource : IAlarmSource, IDisposable
 
     private sealed class SubscriptionHandle : IAlarmSubscriptionHandle
     {
+        /// <summary>Initializes a new instance of the <see cref="SubscriptionHandle"/> class.</summary>
+        /// <param name="id">The diagnostic ID for this subscription handle.</param>
         public SubscriptionHandle(string id) { DiagnosticId = id; }
+        /// <summary>Gets the diagnostic ID that uniquely identifies this subscription.</summary>
         public string DiagnosticId { get; }
     }