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.IntegrationTests/Cluster/ClusterBootstrapCoordinatorTests.cs

@@ -10,7 +10,7 @@ using ZB.MOM.WW.ScadaBridge.Host.Actors;
 namespace ZB.MOM.WW.ScadaBridge.IntegrationTests.Cluster;
 
 /// <summary>
-/// Real-ActorSystem tests for the simultaneous-cold-start split-brain guard (Gitea #33):
+/// Real-ActorSystem tests for the simultaneous-cold-start split-brain guard:
 /// <see cref="ClusterBootstrapCoordinator"/> + <see cref="ClusterBootstrapGuard"/>, driven exactly as
 /// production drives them — the node's ActorSystem is built from the production <c>BuildHocon</c> output
 /// with the guard enabled (which emits an EMPTY seed list, so Akka does not auto-join), then the real
@@ -82,6 +82,7 @@ public sealed class ClusterBootstrapCoordinatorTests : IAsyncLifetime
     /// The FOUNDER (lower address) with the guard on forms a cluster alone when its partner is dead —
     /// exactly as un-guarded self-first does. The guard must not regress the preferred founder.
     /// </summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task Founder_forms_alone_when_partner_is_dead()
     {
@@ -102,6 +103,7 @@ public sealed class ClusterBootstrapCoordinatorTests : IAsyncLifetime
     /// If the guard's peer-first logic were wrong, this node would hang in JoinSeedNodeProcess forever —
     /// the very regression a naive "always let the lower node found" rule would introduce.
     /// </summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task Higher_node_forms_alone_when_partner_is_dead_after_probing()
     {
@@ -122,6 +124,7 @@ public sealed class ClusterBootstrapCoordinatorTests : IAsyncLifetime
     /// window — it is genuinely waiting/probing, not self-forming immediately (which would mean the
     /// guard is inert). If this ever starts seeing a member before the window, the probe is not gating.
     /// </summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task Higher_node_does_not_form_before_the_probe_window_expires()
     {
@@ -142,6 +145,7 @@ public sealed class ClusterBootstrapCoordinatorTests : IAsyncLifetime
     /// then the higher node — its probe finds the founder reachable, it commits peer-first, and the
     /// pair converges to ONE cluster of two.
     /// </summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task Higher_node_joins_a_live_founder()
     {
@@ -163,11 +167,12 @@ public sealed class ClusterBootstrapCoordinatorTests : IAsyncLifetime
     }
 
     /// <summary>
-    /// THE HEADLINE #33 CASE. Both nodes cold-start truly simultaneously with the guard on. Without the
+    /// THE HEADLINE CASE. Both nodes cold-start truly simultaneously with the guard on. Without the
     /// guard each would run FirstSeedNodeProcess, race, and form its own 1-node cluster (split brain).
     /// With it, the founder forms and the higher node probes-then-joins, so the pair converges to
     /// EXACTLY ONE cluster of two — no two oldest, no dual singletons.
     /// </summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task Both_nodes_cold_starting_together_form_exactly_one_cluster()
     {
@@ -188,8 +193,12 @@ public sealed class ClusterBootstrapCoordinatorTests : IAsyncLifetime
             "the higher node must be in the SAME cluster as the founder");
     }
 
+    /// <summary>Prepares the fixture before the tests run.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public Task InitializeAsync() => Task.CompletedTask;
 
+    /// <summary>Releases the resources held by this fixture asynchronously.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public async Task DisposeAsync()
     {
         foreach (var c in _coordinators)