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.ConfigurationDatabase/Repositories/KpiHistoryRepository.cs

@@ -7,7 +7,7 @@ namespace ZB.MOM.WW.ScadaBridge.ConfigurationDatabase.Repositories;
 
 /// <summary>
 /// EF Core implementation of <see cref="IKpiHistoryRepository"/> over the central
-/// <c>KpiSample</c> table (M6 "KPI History &amp; Trends"). See the interface for the
+/// <c>KpiSample</c> table ("KPI History &amp; Trends"). See the interface for the
 /// contract; this class adds notes on the data-access strategy per method.
 /// </summary>
 public sealed class KpiHistoryRepository : IKpiHistoryRepository