docs(tests): fix CommentChecker findings across tests/ — 13,392 → 0 (repo-wide scan clean)

Comment/XML-doc changes only:
- add summaries to ~10k test methods, fixtures, fakes and helpers
  (+ <param> on theories, <returns> on async Task methods,
  <inheritdoc/> on interface implementations the checker can resolve)
- strip ~2.6k project-tracking references (WP*, P*-*, row-NN, Task N,
  #NN, Component-0NN) from comments, keeping the explanatory text;
  reword false positives in comments only
- real docs on fakes implementing BCL/library interfaces
  (IDisposable, ILogger, IOptionsMonitor, IAsyncLifetime)
- reword the last 5 src/ false positives (CWE-1236, failures-1,
  year-0001, M365)

Only non-comment edits: four one-line nested classes split across lines
so members can carry docs. Build 0 errors / 0 warnings.

tests/ZB.MOM.WW.ScadaBridge.SiteEventLogging.Tests/SiteEventLoggerTests.cs

@@ -11,6 +11,7 @@ public class SiteEventLoggerTests : IDisposable
     private readonly string _dbPath;
     private readonly TestLocalDb _localDb;
 
+    /// <summary>Initializes the test class with a temporary LocalDb-backed logger.</summary>
     public SiteEventLoggerTests()
     {
         _dbPath = Path.Combine(Path.GetTempPath(), $"test_events_{Guid.NewGuid()}.db");
@@ -23,6 +24,7 @@ public class SiteEventLoggerTests : IDisposable
         _verifyConnection.Open();
     }
 
+    /// <summary>Releases the resources held by this instance.</summary>
     public void Dispose()
     {
         _verifyConnection.Dispose();
@@ -31,6 +33,8 @@ public class SiteEventLoggerTests : IDisposable
         TestLocalDb.DeleteFiles(_dbPath);
     }
 
+    /// <summary>Verifies that logging an event inserts a record.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task LogEventAsync_InsertsRecord()
     {
@@ -42,6 +46,8 @@ public class SiteEventLoggerTests : IDisposable
         Assert.Equal(1, count);
     }
 
+    /// <summary>Verifies that logging an event stores all of its fields.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task LogEventAsync_StoresAllFields()
     {
@@ -59,6 +65,8 @@ public class SiteEventLoggerTests : IDisposable
         Assert.Equal("{\"value\":95}", reader.GetString(5));
     }
 
+    /// <summary>Verifies that the nullable fields may be left empty.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task LogEventAsync_NullableFieldsAllowed()
     {
@@ -72,6 +80,8 @@ public class SiteEventLoggerTests : IDisposable
         Assert.True(reader.IsDBNull(1));
     }
 
+    /// <summary>Verifies that the stored timestamp is an ISO 8601 UTC value.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task LogEventAsync_StoresIso8601UtcTimestamp()
     {
@@ -84,6 +94,8 @@ public class SiteEventLoggerTests : IDisposable
         Assert.Equal(TimeSpan.Zero, parsed.Offset);
     }
 
+    /// <summary>Verifies that an empty event type throws.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task LogEventAsync_ThrowsOnEmptyEventType()
     {
@@ -91,6 +103,8 @@ public class SiteEventLoggerTests : IDisposable
             _logger.LogEventAsync("", "Info", null, "Source", "Message"));
     }
 
+    /// <summary>Verifies that an empty severity throws.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task LogEventAsync_ThrowsOnEmptySeverity()
     {
@@ -98,6 +112,8 @@ public class SiteEventLoggerTests : IDisposable
             _logger.LogEventAsync("script", "", null, "Source", "Message"));
     }
 
+    /// <summary>Verifies that an empty source throws.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task LogEventAsync_ThrowsOnEmptySource()
     {
@@ -105,6 +121,8 @@ public class SiteEventLoggerTests : IDisposable
             _logger.LogEventAsync("script", "Info", null, "", "Message"));
     }
 
+    /// <summary>Verifies that an empty message throws.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task LogEventAsync_ThrowsOnEmptyMessage()
     {
@@ -112,6 +130,8 @@ public class SiteEventLoggerTests : IDisposable
             _logger.LogEventAsync("script", "Info", null, "Source", ""));
     }
 
+    /// <summary>Verifies that multiple events each get a distinct application-minted id.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task LogEventAsync_MultipleEvents_GetDistinctApplicationMintedIds()
     {
@@ -139,6 +159,8 @@ public class SiteEventLoggerTests : IDisposable
             $"Event id '{id}' is not a GUID in 'N' format."));
     }
 
+    /// <summary>Verifies that all event types are accepted.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task AllEventTypes_Accepted()
     {
@@ -154,8 +176,11 @@ public class SiteEventLoggerTests : IDisposable
         Assert.Equal(6, count);
     }
 
-    // --- SiteEventLogging-020: severity validation against the closed set ---
+    // --- Severity validation against the closed set ---
 
+    /// <summary>Verifies that an unknown severity throws.</summary>
+    /// <param name="badSeverity">The bad severity.</param>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Theory]
     [InlineData("info")]      // wrong casing
     [InlineData("warn")]      // abbreviation
@@ -170,6 +195,9 @@ public class SiteEventLoggerTests : IDisposable
         Assert.Contains("Info, Warning, Error", ex.Message);
     }
 
+    /// <summary>Verifies that every documented severity is accepted.</summary>
+    /// <param name="severity">The severity.</param>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Theory]
     [InlineData("Info")]
     [InlineData("Warning")]