docs: complete XML-doc coverage and strip internal tracking IDs from code comments

Resolve all CommentChecker findings across the gateway server, worker, tests,
and .NET client (314 -> 0 real issues): add missing <returns>/<summary>/<param>
on public and test members, convert Stream/interface overrides to <inheritdoc/>,
and remove internal task/issue tracking IDs (SEC-*, IPC-*, WRK-*, GWC-*, TST-*,
Client.Dotnet-*) from shipped code documentation while preserving the design
rationale prose. Shipped comments should not carry internal bookkeeping, and
complete XML docs keep the analyzer/TreatWarningsAsErrors gate and generated API
docs clean. The 6 remaining flags are heuristic false positives (MD5, UTC-4,
capacity-1, near-1601) left intact so real documentation is not corrupted.

Claude-Session: https://claude.ai/code/session_01DMXXvNuPekkkrTEyPNxEkW

clients/dotnet/ZB.MOM.WW.MxGateway.Client.Tests/FakeGalaxyRepositoryTransport.cs

@@ -8,14 +8,10 @@ namespace ZB.MOM.WW.MxGateway.Client.Tests;
 /// </summary>
 internal sealed class FakeGalaxyRepositoryTransport(MxGatewayClientOptions options) : IGalaxyRepositoryClientTransport
 {
-    /// <summary>
-    /// Gets the gateway client options.
-    /// </summary>
+    /// <inheritdoc />
     public MxGatewayClientOptions Options { get; } = options;
 
-    /// <summary>
-    /// Gets the raw gRPC client; always null for the fake.
-    /// </summary>
+    /// <inheritdoc />
     public GalaxyRepository.GalaxyRepositoryClient? RawClient => null;
 
     /// <summary>
@@ -66,11 +62,7 @@ internal sealed class FakeGalaxyRepositoryTransport(MxGatewayClientOptions optio
     /// </summary>
     public Queue<Exception> DiscoverHierarchyExceptions { get; } = new();
 
-    /// <summary>
-    /// Records the request and either throws a queued exception or returns the configured reply.
-    /// </summary>
-    /// <param name="request">The TestConnectionRequest to process.</param>
-    /// <param name="callOptions">Call options specifying RPC behavior.</param>
+    /// <inheritdoc />
     public Task<TestConnectionReply> TestConnectionAsync(
         TestConnectionRequest request,
         CallOptions callOptions)
@@ -84,11 +76,7 @@ internal sealed class FakeGalaxyRepositoryTransport(MxGatewayClientOptions optio
         return Task.FromResult(TestConnectionReply);
     }
 
-    /// <summary>
-    /// Records the request and either throws a queued exception or returns the configured reply.
-    /// </summary>
-    /// <param name="request">The GetLastDeployTimeRequest to process.</param>
-    /// <param name="callOptions">Call options specifying RPC behavior.</param>
+    /// <inheritdoc />
     public Task<GetLastDeployTimeReply> GetLastDeployTimeAsync(
         GetLastDeployTimeRequest request,
         CallOptions callOptions)
@@ -102,11 +90,7 @@ internal sealed class FakeGalaxyRepositoryTransport(MxGatewayClientOptions optio
         return Task.FromResult(GetLastDeployTimeReply);
     }
 
-    /// <summary>
-    /// Records the request and either throws a queued exception or returns the configured reply.
-    /// </summary>
-    /// <param name="request">The DiscoverHierarchyRequest to process.</param>
-    /// <param name="callOptions">Call options specifying RPC behavior.</param>
+    /// <inheritdoc />
     public Task<DiscoverHierarchyReply> DiscoverHierarchyAsync(
         DiscoverHierarchyRequest request,
         CallOptions callOptions)
@@ -141,11 +125,7 @@ internal sealed class FakeGalaxyRepositoryTransport(MxGatewayClientOptions optio
     /// </summary>
     public Func<Task>? BrowseChildrenGate { get; set; }
 
-    /// <summary>
-    /// Records the request and either throws a queued exception or returns the configured reply.
-    /// </summary>
-    /// <param name="request">The BrowseChildrenRequest to process.</param>
-    /// <param name="callOptions">Call options specifying RPC behavior.</param>
+    /// <inheritdoc />
     public async Task<BrowseChildrenReply> BrowseChildrenAsync(
         BrowseChildrenRequest request,
         CallOptions callOptions)
@@ -187,11 +167,7 @@ internal sealed class FakeGalaxyRepositoryTransport(MxGatewayClientOptions optio
     /// </summary>
     public Func<CancellationToken, Task>? WatchDeployEventsBeforeYield { get; set; }
 
-    /// <summary>
-    /// Records the request and streams events, checking for queued exceptions and calling WatchDeployEventsBeforeYield before each event.
-    /// </summary>
-    /// <param name="request">The WatchDeployEventsRequest to process.</param>
-    /// <param name="callOptions">Call options specifying RPC behavior.</param>
+    /// <inheritdoc />
     public async IAsyncEnumerable<DeployEvent> WatchDeployEventsAsync(
         WatchDeployEventsRequest request,
         CallOptions callOptions)