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.Scripting.Tests/DependencyExtractorTests.cs

@@ -12,6 +12,7 @@ namespace ZB.MOM.WW.OtOpcUa.Core.Scripting.Tests;
 [Trait("Category", "Unit")]
 public sealed class DependencyExtractorTests
 {
+    /// <summary>Verifies that a single literal tag read is extracted.</summary>
     [Fact]
     public void Extracts_single_literal_read()
     {
@@ -24,6 +25,7 @@ public sealed class DependencyExtractorTests
         result.Rejections.ShouldBeEmpty();
     }
 
+    /// <summary>Verifies that multiple distinct tag reads are extracted.</summary>
     [Fact]
     public void Extracts_multiple_distinct_reads()
     {
@@ -39,6 +41,7 @@ public sealed class DependencyExtractorTests
         result.Reads.ShouldContain("Line1/B");
     }
 
+    /// <summary>Verifies that identical reads are deduplicated.</summary>
     [Fact]
     public void Deduplicates_identical_reads_across_the_script()
     {
@@ -53,6 +56,7 @@ public sealed class DependencyExtractorTests
         result.Reads.ShouldContain("X");
     }
 
+    /// <summary>Verifies that virtual tag writes are tracked separately from reads.</summary>
     [Fact]
     public void Tracks_virtual_tag_writes_separately_from_reads()
     {
@@ -69,6 +73,7 @@ public sealed class DependencyExtractorTests
         result.Writes.ShouldNotContain("InTag");
     }
 
+    /// <summary>Verifies that variable paths are rejected.</summary>
     [Fact]
     public void Rejects_variable_path()
     {
@@ -82,6 +87,7 @@ public sealed class DependencyExtractorTests
         result.Rejections[0].Message.ShouldContain("string literal");
     }
 
+    /// <summary>Verifies that concatenated string paths are rejected.</summary>
     [Fact]
     public void Rejects_concatenated_path()
     {
@@ -91,6 +97,7 @@ public sealed class DependencyExtractorTests
         result.Rejections[0].Message.ShouldContain("string literal");
     }
 
+    /// <summary>Verifies that interpolated string paths are rejected.</summary>
     [Fact]
     public void Rejects_interpolated_path()
     {
@@ -103,6 +110,7 @@ public sealed class DependencyExtractorTests
         result.Rejections[0].Message.ShouldContain("string literal");
     }
 
+    /// <summary>Verifies that method-returned paths are rejected.</summary>
     [Fact]
     public void Rejects_method_returned_path()
     {
@@ -115,6 +123,7 @@ public sealed class DependencyExtractorTests
         result.Rejections[0].Message.ShouldContain("string literal");
     }
 
+    /// <summary>Verifies that empty literal paths are rejected.</summary>
     [Fact]
     public void Rejects_empty_literal_path()
     {
@@ -124,6 +133,7 @@ public sealed class DependencyExtractorTests
         result.Rejections[0].Message.ShouldContain("empty");
     }
 
+    /// <summary>Verifies that whitespace-only paths are rejected.</summary>
     [Fact]
     public void Rejects_whitespace_only_path()
     {
@@ -132,6 +142,7 @@ public sealed class DependencyExtractorTests
         result.IsValid.ShouldBeFalse();
     }
 
+    /// <summary>Verifies that free-function GetTag calls are ignored.</summary>
     [Fact]
     public void Ignores_non_ctx_method_named_GetTag_free_function()
     {
@@ -147,6 +158,7 @@ public sealed class DependencyExtractorTests
         result.Reads.ShouldBeEmpty();
     }
 
+    /// <summary>Verifies that member-access GetTag on non-ctx receivers is ignored.</summary>
     [Fact]
     public void Ignores_member_access_GetTag_on_non_ctx_receiver()
     {
@@ -165,6 +177,7 @@ public sealed class DependencyExtractorTests
         result.Reads.ShouldNotContain("X");
     }
 
+    /// <summary>Verifies that empty source is handled without error.</summary>
     [Fact]
     public void Empty_source_is_a_no_op()
     {
@@ -173,6 +186,7 @@ public sealed class DependencyExtractorTests
         DependencyExtractor.Extract(null!).IsValid.ShouldBeTrue();
     }
 
+    /// <summary>Verifies that rejections include source span for UI pointing.</summary>
     [Fact]
     public void Rejection_carries_source_span_for_UI_pointing()
     {
@@ -185,6 +199,7 @@ public sealed class DependencyExtractorTests
         result.Rejections[0].Span.Length.ShouldBeGreaterThan(0);
     }
 
+    /// <summary>Verifies that all bad paths are reported in a single pass.</summary>
     [Fact]
     public void Multiple_bad_paths_all_reported_in_one_pass()
     {
@@ -197,6 +212,7 @@ public sealed class DependencyExtractorTests
         result.Rejections.Count.ShouldBe(2);
     }
 
+    /// <summary>Verifies that nested literal GetTag calls inside expressions are extracted.</summary>
     [Fact]
     public void Nested_literal_GetTag_inside_expression_is_extracted()
     {
@@ -210,6 +226,7 @@ public sealed class DependencyExtractorTests
         result.Reads.Count.ShouldBe(2);
     }
 
+    /// <summary>Verifies that single-line raw string literal paths are accepted.</summary>
     [Fact]
     public void Accepts_single_line_raw_string_literal_path()
     {
@@ -224,6 +241,7 @@ public sealed class DependencyExtractorTests
         result.Rejections.ShouldBeEmpty();
     }
 
+    /// <summary>Verifies that multi-line raw string literal paths are accepted.</summary>
     [Fact]
     public void Accepts_multi_line_raw_string_literal_path()
     {