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.SiteCallAudit.Tests/SiteCallAuditOptionsTests.cs

@@ -2,6 +2,7 @@ namespace ZB.MOM.WW.ScadaBridge.SiteCallAudit.Tests;
 
 public class SiteCallAuditOptionsTests
 {
+    /// <summary>Verifies that the defaults are the expected values.</summary>
     [Fact]
     public void Defaults_AreExpectedValues()
     {
@@ -12,7 +13,7 @@ public class SiteCallAuditOptionsTests
         // KPI interval mirrors NotificationOutboxOptions.DeliveredKpiWindow.
         Assert.Equal(TimeSpan.FromMinutes(1), options.KpiInterval);
 
-        // Reconciliation tick cadence mirrors SiteAuditReconciliationOptions (#23).
+        // Reconciliation tick cadence mirrors SiteAuditReconciliationOptions.
         Assert.Equal(TimeSpan.FromMinutes(5), options.ReconciliationInterval);
         // Purge tick cadence mirrors AuditLogPurgeOptions.
         Assert.Equal(TimeSpan.FromHours(24), options.PurgeInterval);
@@ -20,6 +21,7 @@ public class SiteCallAuditOptionsTests
         Assert.Equal(365, options.RetentionDays);
     }
 
+    /// <summary>Verifies that the resolved reconciliation interval defaults to the configured value.</summary>
     [Fact]
     public void ResolvedReconciliationInterval_DefaultsToConfiguredValue()
     {
@@ -28,6 +30,8 @@ public class SiteCallAuditOptionsTests
         Assert.Equal(options.ReconciliationInterval, options.ResolvedReconciliationInterval);
     }
 
+    /// <summary>Verifies that the resolved reconciliation interval clamps a zero or negative value to the minimum.</summary>
+    /// <param name="configuredSeconds">The configured interval in seconds.</param>
     [Theory]
     [InlineData(0)]
     [InlineData(-5)]
@@ -47,6 +51,7 @@ public class SiteCallAuditOptionsTests
         Assert.Equal(TimeSpan.FromSeconds(1), options.ResolvedReconciliationInterval);
     }
 
+    /// <summary>Verifies that an override of the reconciliation interval bypasses the clamp.</summary>
     [Fact]
     public void ResolvedReconciliationInterval_OverrideBypassesClamp()
     {
@@ -62,6 +67,7 @@ public class SiteCallAuditOptionsTests
         Assert.Equal(sub1Second, options.ResolvedReconciliationInterval);
     }
 
+    /// <summary>Verifies that the resolved purge interval defaults to the configured value.</summary>
     [Fact]
     public void ResolvedPurgeInterval_DefaultsToConfiguredValue()
     {
@@ -70,6 +76,8 @@ public class SiteCallAuditOptionsTests
         Assert.Equal(options.PurgeInterval, options.ResolvedPurgeInterval);
     }
 
+    /// <summary>Verifies that the resolved purge interval clamps a zero or negative value to the minimum.</summary>
+    /// <param name="configuredSeconds">The configured interval in seconds.</param>
     [Theory]
     [InlineData(0)]
     [InlineData(-30)]
@@ -89,6 +97,7 @@ public class SiteCallAuditOptionsTests
         Assert.Equal(TimeSpan.FromMinutes(1), options.ResolvedPurgeInterval);
     }
 
+    /// <summary>Verifies that a purge interval below the one-minute floor is clamped to the minimum.</summary>
     [Fact]
     public void ResolvedPurgeInterval_BelowMinuteFloorClampsToMinimum()
     {
@@ -101,6 +110,7 @@ public class SiteCallAuditOptionsTests
         Assert.Equal(TimeSpan.FromMinutes(1), options.ResolvedPurgeInterval);
     }
 
+    /// <summary>Verifies that an override of the purge interval bypasses the clamp.</summary>
     [Fact]
     public void ResolvedPurgeInterval_OverrideBypassesClamp()
     {