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/Stability/ScheduledRecycleScheduler.cs

@@ -66,6 +66,9 @@ public sealed class ScheduledRecycleScheduler
     ///     <see cref="NextRecycleUtc"/>, requests a recycle from the supervisor and advances
     ///     <see cref="NextRecycleUtc"/> by exactly one interval. Returns true when a recycle fired.
     /// </summary>
+    /// <param name="utcNow">The current UTC time.</param>
+    /// <param name="cancellationToken">The cancellation token.</param>
+    /// <returns>True if a recycle was triggered; false otherwise.</returns>
     public async Task<bool> TickAsync(DateTime utcNow, CancellationToken cancellationToken)
     {
         if (utcNow < _nextRecycleUtc)
@@ -81,6 +84,9 @@ public sealed class ScheduledRecycleScheduler
     }
 
     /// <summary>Request an immediate recycle outside the schedule (e.g. MemoryRecycle hard-breach escalation).</summary>
+    /// <param name="reason">The reason for requesting an immediate recycle.</param>
+    /// <param name="cancellationToken">The cancellation token.</param>
+    /// <returns>A task representing the asynchronous recycle operation.</returns>
     public Task RequestRecycleNowAsync(string reason, CancellationToken cancellationToken) =>
         _supervisor.RecycleAsync(reason, cancellationToken);
 }