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.LoadHarness/SimulatedDataConnection.cs

@@ -44,10 +44,11 @@ public sealed class SimulatedDataConnection : IDataConnection, IBatchSubscribabl
     /// <summary>Key under which the connection name travels in the connection details.</summary>
     public const string ConnectionNameKey = "connectionName";
 
+    // Gets the current health of the simulated connection.
     /// <inheritdoc />
     public ConnectionHealth Status { get; private set; } = ConnectionHealth.Disconnected;
 
-    /// <inheritdoc />
+    /// <summary>Raised when the simulated connection is disconnected.</summary>
     public event Action? Disconnected;
 
     /// <summary>
@@ -60,6 +61,7 @@ public sealed class SimulatedDataConnection : IDataConnection, IBatchSubscribabl
     /// <summary>Number of tag paths this connection has accepted subscriptions for.</summary>
     public int SubscribedTagCount => _subscriptionCounter;
 
+    // Marks the connection as connected and records the connection name from the details, if present.
     /// <inheritdoc />
     public Task ConnectAsync(IDictionary<string, string> connectionDetails, CancellationToken cancellationToken = default)
     {
@@ -70,6 +72,7 @@ public sealed class SimulatedDataConnection : IDataConnection, IBatchSubscribabl
         return Task.CompletedTask;
     }
 
+    // Marks the connection as disconnected and raises the Disconnected event.
     /// <inheritdoc />
     public Task DisconnectAsync(CancellationToken cancellationToken = default)
     {
@@ -78,6 +81,7 @@ public sealed class SimulatedDataConnection : IDataConnection, IBatchSubscribabl
         return Task.CompletedTask;
     }
 
+    // Captures the callback and returns a new subscription id.
     /// <inheritdoc />
     public Task<string> SubscribeAsync(string tagPath, SubscriptionCallback callback, CancellationToken cancellationToken = default)
     {
@@ -85,6 +89,7 @@ public sealed class SimulatedDataConnection : IDataConnection, IBatchSubscribabl
         return Task.FromResult($"sub-{Interlocked.Increment(ref _subscriptionCounter)}");
     }
 
+    // Captures the callback and accepts every tag path in the batch.
     /// <inheritdoc />
     public Task<IReadOnlyList<TagSubscribeResult>> SubscribeBatchAsync(
         IReadOnlyList<string> tagPaths,
@@ -102,18 +107,22 @@ public sealed class SimulatedDataConnection : IDataConnection, IBatchSubscribabl
         return Task.FromResult<IReadOnlyList<TagSubscribeResult>>(results);
     }
 
+    // Does nothing; the simulated connection keeps no per-subscription state.
     /// <inheritdoc />
     public Task UnsubscribeAsync(string subscriptionId, CancellationToken cancellationToken = default)
         => Task.CompletedTask;
 
+    // Does nothing; the simulated connection keeps no per-subscription state.
     /// <inheritdoc />
     public Task UnsubscribeBatchAsync(IReadOnlyList<string> subscriptionIds, CancellationToken cancellationToken = default)
         => Task.CompletedTask;
 
+    // Returns a good-quality zero value for any tag.
     /// <inheritdoc />
     public Task<ReadResult> ReadAsync(string tagPath, CancellationToken cancellationToken = default)
         => Task.FromResult(new ReadResult(true, new TagValue(0d, QualityCode.Good, DateTimeOffset.UtcNow), null));
 
+    // Returns a good-quality zero value for every requested tag.
     /// <inheritdoc />
     public Task<IReadOnlyDictionary<string, ReadResult>> ReadBatchAsync(
         IEnumerable<string> tagPaths, CancellationToken cancellationToken = default)
@@ -126,10 +135,12 @@ public sealed class SimulatedDataConnection : IDataConnection, IBatchSubscribabl
         return Task.FromResult<IReadOnlyDictionary<string, ReadResult>>(results);
     }
 
+    // Accepts the write without storing it.
     /// <inheritdoc />
     public Task<WriteResult> WriteAsync(string tagPath, object? value, CancellationToken cancellationToken = default)
         => Task.FromResult(new WriteResult(true, null));
 
+    // Accepts every write in the batch without storing it.
     /// <inheritdoc />
     public Task<IReadOnlyDictionary<string, WriteResult>> WriteBatchAsync(
         IDictionary<string, object?> values, CancellationToken cancellationToken = default)
@@ -141,6 +152,7 @@ public sealed class SimulatedDataConnection : IDataConnection, IBatchSubscribabl
         return Task.FromResult<IReadOnlyDictionary<string, WriteResult>>(results);
     }
 
+    // Accepts the batch and reports that the awaited response matched immediately.
     /// <inheritdoc />
     public Task<bool> WriteBatchAndWaitAsync(
         IDictionary<string, object?> values, string flagPath, object? flagValue,
@@ -148,6 +160,7 @@ public sealed class SimulatedDataConnection : IDataConnection, IBatchSubscribabl
         CancellationToken cancellationToken = default)
         => Task.FromResult(true);
 
-    /// <inheritdoc />
+    /// <summary>Releases the connection; the simulated connection holds no resources.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public ValueTask DisposeAsync() => ValueTask.CompletedTask;
 }