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.

tests/Core/ZB.MOM.WW.OtOpcUa.Core.Tests/Resilience/DriverResilienceStatusTrackerTests.cs

@@ -9,6 +9,7 @@ public sealed class DriverResilienceStatusTrackerTests
 {
     private static readonly DateTime Now = new(2026, 4, 19, 12, 0, 0, DateTimeKind.Utc);
 
+    /// <summary>Verifies that TryGet returns null before any write operations.</summary>
     [Fact]
     public void TryGet_Returns_Null_Before_AnyWrite()
     {
@@ -17,6 +18,7 @@ public sealed class DriverResilienceStatusTrackerTests
         tracker.TryGet("drv", "host").ShouldBeNull();
     }
 
+    /// <summary>Verifies that RecordFailure accumulates consecutive failures.</summary>
     [Fact]
     public void RecordFailure_Accumulates_ConsecutiveFailures()
     {
@@ -29,6 +31,7 @@ public sealed class DriverResilienceStatusTrackerTests
         tracker.TryGet("drv", "host")!.ConsecutiveFailures.ShouldBe(3);
     }
 
+    /// <summary>Verifies that RecordSuccess resets consecutive failures to zero.</summary>
     [Fact]
     public void RecordSuccess_Resets_ConsecutiveFailures()
     {
@@ -41,6 +44,7 @@ public sealed class DriverResilienceStatusTrackerTests
         tracker.TryGet("drv", "host")!.ConsecutiveFailures.ShouldBe(0);
     }
 
+    /// <summary>Verifies that RecordBreakerOpen populates the LastBreakerOpenUtc timestamp.</summary>
     [Fact]
     public void RecordBreakerOpen_Populates_LastBreakerOpenUtc()
     {
@@ -51,6 +55,7 @@ public sealed class DriverResilienceStatusTrackerTests
         tracker.TryGet("drv", "host")!.LastBreakerOpenUtc.ShouldBe(Now);
     }
 
+    /// <summary>Verifies that RecordRecycle populates the LastRecycleUtc timestamp.</summary>
     [Fact]
     public void RecordRecycle_Populates_LastRecycleUtc()
     {
@@ -61,6 +66,7 @@ public sealed class DriverResilienceStatusTrackerTests
         tracker.TryGet("drv", "host")!.LastRecycleUtc.ShouldBe(Now);
     }
 
+    /// <summary>Verifies that RecordFootprint captures baseline and current memory usage.</summary>
     [Fact]
     public void RecordFootprint_CapturesBaselineAndCurrent()
     {
@@ -73,6 +79,7 @@ public sealed class DriverResilienceStatusTrackerTests
         snap.CurrentFootprintBytes.ShouldBe(150_000_000);
     }
 
+    /// <summary>Verifies that different hosts are tracked independently.</summary>
     [Fact]
     public void DifferentHosts_AreIndependent()
     {
@@ -86,6 +93,7 @@ public sealed class DriverResilienceStatusTrackerTests
         tracker.TryGet("drv", "host-b")!.ConsecutiveFailures.ShouldBe(1);
     }
 
+    /// <summary>Verifies that Snapshot returns all tracked driver-host pairs.</summary>
     [Fact]
     public void Snapshot_ReturnsAll_TrackedPairs()
     {
@@ -99,6 +107,7 @@ public sealed class DriverResilienceStatusTrackerTests
         snapshot.Count.ShouldBe(3);
     }
 
+    /// <summary>Verifies that concurrent writes do not lose failure records.</summary>
     [Fact]
     public void ConcurrentWrites_DoNotLose_Failures()
     {