docs(comments): strip internal task/milestone/bundle bookkeeping from code comments

Remove project bookkeeping citations from shipped code comments across the
solution: hyphenated task IDs (WP-14, StoreAndForward-025), milestone/task/
issue refs (M3, Task 4, Audit Log #23, #21), Bundle X task-bundle labels,
and C/D/K/S/T phase labels.

Comment text only — no code logic, string/log literals, or XML-doc structure
changed. Genuine descriptions are preserved (only the citation is stripped),
and technical lookalikes are retained (UTF-8, SHA-256, T00:00:00, M365,
UTC-5, pre-C4/pre-C5 schema versions). Flagged by the new CommentChecker
TaskReferenceInComment / TrackingReferenceInComment checks plus targeted
grep passes; full solution builds clean, append-only guard tests pass.

src/ZB.MOM.WW.ScadaBridge.NotificationService/ServiceCollectionExtensions.cs

@@ -11,7 +11,7 @@ public static class ServiceCollectionExtensions
     /// Central-only — sites no longer deliver notifications (see
     /// <c>Component-NotificationService.md</c>), and the orphaned site-shaped
     /// <c>NotificationDeliveryService</c> + <c>INotificationDeliveryService</c> contract
-    /// was removed (NS-019). Notification dispatch lives in <c>ZB.MOM.WW.ScadaBridge.NotificationOutbox</c>.
+    /// was removed. Notification dispatch lives in <c>ZB.MOM.WW.ScadaBridge.NotificationOutbox</c>.
     /// </summary>
     /// <param name="services">The service collection to register into.</param>
     /// <returns>The same <paramref name="services"/> collection, for chaining.</returns>