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/Server/ZB.MOM.WW.OtOpcUa.Runtime.Tests/Drivers/DeploymentArtifactTests.cs

@@ -8,18 +8,21 @@ namespace ZB.MOM.WW.OtOpcUa.Runtime.Tests.Drivers;
 
 public sealed class DeploymentArtifactTests
 {
+    /// <summary>Verifies that empty blob returns empty list.</summary>
     [Fact]
     public void Empty_blob_returns_empty_list()
     {
         DeploymentArtifact.ParseDriverInstances(ReadOnlySpan<byte>.Empty).ShouldBeEmpty();
     }
 
+    /// <summary>Verifies that malformed JSON returns empty list.</summary>
     [Fact]
     public void Malformed_json_returns_empty_list()
     {
         DeploymentArtifact.ParseDriverInstances(Encoding.UTF8.GetBytes("not json")).ShouldBeEmpty();
     }
 
+    /// <summary>Verifies that snapshot without DriverInstances returns empty.</summary>
     [Fact]
     public void Snapshot_without_DriverInstances_returns_empty()
     {
@@ -27,6 +30,7 @@ public sealed class DeploymentArtifactTests
         DeploymentArtifact.ParseDriverInstances(blob).ShouldBeEmpty();
     }
 
+    /// <summary>Verifies that driver instances are parsed from composer-shaped blob.</summary>
     [Fact]
     public void Parses_driver_instances_from_composer_shaped_blob()
     {
@@ -69,6 +73,7 @@ public sealed class DeploymentArtifactTests
         specs[1].Enabled.ShouldBeFalse();
     }
 
+    /// <summary>Verifies that ParseComposition returns empty for empty blob.</summary>
     [Fact]
     public void ParseComposition_returns_empty_for_empty_blob()
     {
@@ -78,6 +83,7 @@ public sealed class DeploymentArtifactTests
         c.ScriptedAlarmPlans.ShouldBeEmpty();
     }
 
+    /// <summary>Verifies that ParseComposition reads all three entity classes sorted by ID.</summary>
     [Fact]
     public void ParseComposition_reads_all_three_entity_classes_sorted_by_id()
     {
@@ -111,6 +117,7 @@ public sealed class DeploymentArtifactTests
         c.ScriptedAlarmPlans.Single().ScriptedAlarmId.ShouldBe("alarm-1");
     }
 
+    /// <summary>Verifies that specs missing required fields are dropped.</summary>
     [Fact]
     public void Spec_missing_required_fields_is_dropped()
     {