docs: strip task-tracking IDs from code comments and fill missing XML docs

Tracking IDs are review bookkeeping that rots in shipped source; the rationale they tagged is kept. Comment-only change (CommentChecker 458 -> 16 false positives).

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

@@ -4,15 +4,16 @@ using ZB.MOM.WW.MxGateway.Contracts.Proto;
 namespace ZB.MOM.WW.MxGateway.Client.Tests;
 
 /// <summary>
-/// Tests for the credential-scrub (CLI-40) and malformed-reply (CLI-41) contracts on the
+/// Tests for the credential-scrub and malformed-reply contracts on the
 /// credential and id-returning session helpers, driven from shared behavior fixtures.
 /// </summary>
 public sealed class MxGatewaySessionReplyContractTests
 {
     /// <summary>
-    /// CLI-40: when MXAccess echoes the submitted credential back in its failure diagnostic,
+    /// Verifies that when MXAccess echoes the submitted credential back in its failure diagnostic,
     /// the surfaced exception message must scrub it to the library redaction marker.
     /// </summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task AuthenticateUserAsync_RedactsEchoedCredentialInFailureMessage()
     {
@@ -33,13 +34,14 @@ public sealed class MxGatewaySessionReplyContractTests
     }
 
     /// <summary>
-    /// CLI-40: the redacted exception must not leak the echoed credential through any structured
+    /// Verifies that the redacted exception must not leak the echoed credential through any structured
     /// accessor either — <see cref="MxAccessException.Reply"/> (protocol message, diagnostic
     /// message, and each MXSTATUS_PROXY diagnostic text) and <see cref="MxGatewayException.Statuses"/>
     /// all carry the server-echoed credential verbatim before the fix. Both the OK+negative-HRESULT
     /// and the MXACCESS_FAILURE reply route to <see cref="MxAccessException"/>, so both must scrub.
     /// </summary>
     /// <param name="fixture">The echoed-credential reply fixture to drive.</param>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Theory]
     [InlineData("authenticate-user.echoed-credential.reply.json")]
     [InlineData("authenticate-user.echoed-credential-mxaccess-failure.reply.json")]
@@ -71,9 +73,10 @@ public sealed class MxGatewaySessionReplyContractTests
     }
 
     /// <summary>
-    /// CLI-41: an OK reply that carries neither the typed AuthenticateUser payload nor an
+    /// Verifies that an OK reply that carries neither the typed AuthenticateUser payload nor an
     /// int32 return_value is a malformed reply, surfaced as a typed exception rather than an NRE.
     /// </summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task AuthenticateUserAsync_MissingPayloadAndReturnValue_ThrowsMalformedReply()
     {
@@ -87,9 +90,10 @@ public sealed class MxGatewaySessionReplyContractTests
     }
 
     /// <summary>
-    /// CLI-41: an OK reply that omits the typed payload but carries an int32 return_value
+    /// Verifies that an OK reply that omits the typed payload but carries an int32 return_value
     /// resolves to that return value.
     /// </summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task AuthenticateUserAsync_ReturnValueOnly_ResolvesReturnValue()
     {
@@ -104,9 +108,10 @@ public sealed class MxGatewaySessionReplyContractTests
     }
 
     /// <summary>
-    /// CLI-41: the AddBufferedItem fallback shares the malformed-reply contract — an OK reply
+    /// Verifies that the AddBufferedItem fallback shares the malformed-reply contract — an OK reply
     /// with neither a typed item handle nor an int32 return_value throws the typed exception.
     /// </summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task AddBufferedItemAsync_MissingPayloadAndReturnValue_ThrowsMalformedReply()
     {