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/IAlarmStateStore.cs

@@ -15,9 +15,27 @@ namespace ZB.MOM.WW.OtOpcUa.Core.ScriptedAlarms;
 /// </remarks>
 public interface IAlarmStateStore
 {
+    /// <summary>Loads the alarm state for a specific alarm identifier.</summary>
+    /// <param name="alarmId">The alarm identifier.</param>
+    /// <param name="ct">Cancellation token.</param>
+    /// <returns>The alarm state if found; otherwise null.</returns>
     Task<AlarmConditionState?> LoadAsync(string alarmId, CancellationToken ct);
+
+    /// <summary>Loads all alarm states from the store.</summary>
+    /// <param name="ct">Cancellation token.</param>
+    /// <returns>A collection of all alarm states.</returns>
     Task<IReadOnlyList<AlarmConditionState>> LoadAllAsync(CancellationToken ct);
+
+    /// <summary>Saves an alarm state to the store.</summary>
+    /// <param name="state">The alarm state to save.</param>
+    /// <param name="ct">Cancellation token.</param>
+    /// <returns>A task representing the save operation.</returns>
     Task SaveAsync(AlarmConditionState state, CancellationToken ct);
+
+    /// <summary>Removes an alarm state from the store.</summary>
+    /// <param name="alarmId">The alarm identifier to remove.</param>
+    /// <param name="ct">Cancellation token.</param>
+    /// <returns>A task representing the remove operation.</returns>
     Task RemoveAsync(string alarmId, CancellationToken ct);
 }
 
@@ -27,18 +45,22 @@ public sealed class InMemoryAlarmStateStore : IAlarmStateStore
     private readonly ConcurrentDictionary<string, AlarmConditionState> _map
         = new(StringComparer.Ordinal);
 
+    /// <inheritdoc />
     public Task<AlarmConditionState?> LoadAsync(string alarmId, CancellationToken ct)
         => Task.FromResult(_map.TryGetValue(alarmId, out var v) ? v : null);
 
+    /// <inheritdoc />
     public Task<IReadOnlyList<AlarmConditionState>> LoadAllAsync(CancellationToken ct)
         => Task.FromResult<IReadOnlyList<AlarmConditionState>>(_map.Values.ToArray());
 
+    /// <inheritdoc />
     public Task SaveAsync(AlarmConditionState state, CancellationToken ct)
     {
         _map[state.AlarmId] = state;
         return Task.CompletedTask;
     }
 
+    /// <inheritdoc />
     public Task RemoveAsync(string alarmId, CancellationToken ct)
     {
         _map.TryRemove(alarmId, out _);