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.ConfigurationDatabase.Tests/SqliteTestHelper.cs

@@ -14,16 +14,19 @@ namespace ZB.MOM.WW.ScadaBridge.ConfigurationDatabase.Tests;
 ///
 /// Constructed with an explicit ephemeral Data Protection provider so secret-bearing
 /// columns are write-capable in tests. The schema-only no-provider constructor would
-/// throw on a secret-column write (ConfigurationDatabase-013); passing a provider here
+/// throw on a secret-column write; passing a provider here
 /// makes the test fixture's intent explicit at the call site.
 /// </summary>
 public class SqliteTestDbContext : ScadaBridgeDbContext
 {
+    /// <summary>Initializes the context with the given SQLite options and an ephemeral data protection provider.</summary>
+    /// <param name="options">The EF options configured for the SQLite provider.</param>
     public SqliteTestDbContext(DbContextOptions<ScadaBridgeDbContext> options)
         : base(options, new EphemeralDataProtectionProvider())
     {
     }
 
+    /// <inheritdoc />
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
         base.OnModelCreating(modelBuilder);
@@ -38,7 +41,7 @@ public class SqliteTestDbContext : ScadaBridgeDbContext
                 .ValueGeneratedNever();
         });
 
-        // Note (C5 / Task 2.5): the central dbo.AuditLog persisted computed columns
+        // Note: the central dbo.AuditLog persisted computed columns
         // (JSON_VALUE-based) are neutralized for non-SQL-Server providers inside
         // ScadaBridgeDbContext.OnModelCreating itself, so every SQLite test context —
         // including ones that construct ScadaBridgeDbContext directly rather than via
@@ -74,6 +77,8 @@ public class SqliteTestDbContext : ScadaBridgeDbContext
 
 public static class SqliteTestHelper
 {
+    /// <summary>Creates a context backed by a fresh in-memory SQLite database with the schema created.</summary>
+    /// <returns>The open in-memory test context.</returns>
     public static ScadaBridgeDbContext CreateInMemoryContext()
     {
         var options = new DbContextOptionsBuilder<ScadaBridgeDbContext>()
@@ -92,6 +97,8 @@ public static class SqliteTestHelper
     /// test observe the actual SQL a repository emits (e.g. count DELETE statements
     /// issued by a batched purge).
     /// </summary>
+    /// <param name="interceptors">The EF interceptors to attach to the context.</param>
+    /// <returns>The open in-memory test context with the interceptors attached.</returns>
     public static ScadaBridgeDbContext CreateInMemoryContext(params IInterceptor[] interceptors)
     {
         var options = new DbContextOptionsBuilder<ScadaBridgeDbContext>()
@@ -106,6 +113,9 @@ public static class SqliteTestHelper
         return context;
     }
 
+    /// <summary>Creates a context backed by a SQLite database file.</summary>
+    /// <param name="dbPath">The path of the SQLite database file.</param>
+    /// <returns>The file-backed test context.</returns>
     public static ScadaBridgeDbContext CreateFileContext(string dbPath)
     {
         var options = new DbContextOptionsBuilder<ScadaBridgeDbContext>()