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.SiteEventLogging/ServiceCollectionExtensions.cs

@@ -23,7 +23,7 @@ public static class ServiceCollectionExtensions
         services.AddSingleton<ISiteEventLogger>(sp => sp.GetRequiredService<SiteEventLogger>());
         services.AddSingleton<IEventLogQueryService, EventLogQueryService>();
 
-        // SiteEventLogging-019: the purge service still registers on every host
+        // The purge service still registers on every host
         // node, but it consults an optional SiteEventLogActiveNodeCheck on each
         // tick and early-exits on the standby. The Host registers the real
         // active-node check on site nodes; tests and non-clustered hosts leave