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/SiteEventLoggerAsyncTests.cs

@@ -6,8 +6,8 @@ using Microsoft.Extensions.Options;
 namespace ZB.MOM.WW.ScadaBridge.SiteEventLogging.Tests;
 
 /// <summary>
-/// Regression tests for SiteEventLogging-005 (synchronous I/O on caller thread)
-/// and SiteEventLogging-008 (write failures silently swallowed).
+/// Regression tests for non-blocking logging (synchronous I/O on the caller thread)
+/// and surfaced write failures (failures silently swallowed).
 /// </summary>
 public class SiteEventLoggerAsyncTests : IDisposable
 {
@@ -15,6 +15,7 @@ public class SiteEventLoggerAsyncTests : IDisposable
     private readonly string _dbPath;
     private readonly TestLocalDb _localDb;
 
+    /// <summary>Initializes the test class with a temporary LocalDb-backed event logger.</summary>
     public SiteEventLoggerAsyncTests()
     {
         _dbPath = Path.Combine(Path.GetTempPath(), $"test_async_{Guid.NewGuid()}.db");
@@ -23,6 +24,7 @@ public class SiteEventLoggerAsyncTests : IDisposable
         _logger = new SiteEventLogger(options, NullLogger<SiteEventLogger>.Instance, _localDb.Db);
     }
 
+    /// <summary>Releases the resources held by this test class.</summary>
     public void Dispose()
     {
         _logger.Dispose();
@@ -30,10 +32,12 @@ public class SiteEventLoggerAsyncTests : IDisposable
         TestLocalDb.DeleteFiles(_dbPath);
     }
 
+    /// <summary>Verifies that logging an event does not block the caller when the write is slow.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task LogEventAsync_DoesNotBlockCaller_WhenWriteIsSlow()
     {
-        // SiteEventLogging-005: LogEventAsync must not perform the SQLite write
+        // LogEventAsync must not perform the SQLite write
         // inline on the caller's thread. We hold the recorder busy on a long
         // database operation from one thread, then time how long it takes the
         // caller of LogEventAsync to get control back. If recording is offloaded
@@ -71,6 +75,8 @@ public class SiteEventLoggerAsyncTests : IDisposable
         await recordTask.WaitAsync(TimeSpan.FromSeconds(10));
     }
 
+    /// <summary>Verifies that the logging task completes only after the event is persisted.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task LogEventAsync_TaskCompletes_AfterEventIsPersisted()
     {
@@ -86,10 +92,12 @@ public class SiteEventLoggerAsyncTests : IDisposable
         Assert.Equal(1, count);
     }
 
+    /// <summary>Verifies that a write error faults the logging task and increments the failure count.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task LogEventAsync_FaultsTask_AndCountsFailure_OnWriteError()
     {
-        // SiteEventLogging-008: a write failure must not be silently swallowed.
+        // A write failure must not be silently swallowed.
         // The returned Task must fault and the failure counter must increment so
         // Health Monitoring can surface a logging outage.
         using var failingConnection = new SqliteConnection("Data Source=:memory:");