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.SiteRuntime.Tests/Scripts/SiteScriptCompileCacheTests.cs

@@ -37,6 +37,7 @@ public class SiteScriptCompileCacheTests
     private static ScriptCompilationResult Ok() =>
         ScriptCompilationResult.Succeeded(CSharpScript.Create<object?>("1", ScriptOptions.Default, typeof(ScriptGlobals)));
 
+    /// <summary>Verifies that GetOrAdd with the same code and globals computes the value only once.</summary>
     [Fact]
     public void GetOrAdd_SameCodeAndGlobals_ComputesOnce()
     {
@@ -52,6 +53,7 @@ public class SiteScriptCompileCacheTests
         Assert.Equal(1, _cache.Count);
     }
 
+    /// <summary>Verifies that GetOrAdd with the same code but different globals creates separate entries.</summary>
     [Fact]
     public void GetOrAdd_SameCode_DifferentGlobals_AreSeparateEntries()
     {
@@ -114,6 +116,7 @@ public class SiteScriptCompileCacheTests
             () => throw new InvalidOperationException("our entry was evicted by another cache")));
     }
 
+    /// <summary>Verifies that overflowing the cache keeps it within its bound.</summary>
     [Fact]
     public void Overflow_StaysWithinTheBound()
     {
@@ -132,10 +135,10 @@ public class SiteScriptCompileCacheTests
         Assert.True(recomputed > 0, "no oldest-batch entry was evicted — the overflow sweep did not run");
     }
 
-    // ── WP3.1: approximate LRU replaced the wholesale-Clear overflow cliff ──────────
+    // ── Approximate LRU replaced the wholesale-Clear overflow cliff ──────────
 
     /// <summary>
-    /// WP3.1 (test group 8): overflow must evict only the OLDEST batch, keeping hot entries.
+    /// Overflow must evict only the OLDEST batch, keeping hot entries.
     /// The old behaviour cleared all 1024 entries, so the very next deploy or Instance-Actor
     /// start paid a full recompile storm on actor threads.
     /// </summary>
@@ -177,10 +180,11 @@ public class SiteScriptCompileCacheTests
     }
 
     /// <summary>
-    /// WP3.1: concurrent inserts crossing the bound together must not blow past it — the
+    /// Concurrent inserts crossing the bound together must not blow past it — the
     /// eviction sweep is double-checked under its own lock precisely so a stampede performs
     /// one sweep rather than one per racing thread.
     /// </summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task ConcurrentGetOrAddStorm_KeepsTheBound()
     {
@@ -199,7 +203,7 @@ public class SiteScriptCompileCacheTests
         // (register row 100 — it used to be 512, to absorb inserts from other test classes
         // sharing the process-global cache; nothing foreign can reach this instance).
         // The property under test is that 3200 distinct inserts do not accumulate — before
-        // WP3.1 this was a wholesale clear, and a per-entry eviction bug would show up here as
+        // the change to approximate LRU this was a wholesale clear, and a per-entry eviction bug would show up here as
         // unbounded growth, not as a handful of extra rows.
         Assert.True(_cache.Count <= SiteScriptCompileCache.MaxEntries + tasks,
             $"cache grew past its bound: {_cache.Count} vs max {SiteScriptCompileCache.MaxEntries} " +