docs(xmldoc): fill missing XML docs + strip tracking-ID comments across src

Adds <summary>/<param>/<returns>/<inheritdoc> where missing and removes
project bookkeeping IDs (task/tracking refs) from shipped code comments,
so the docs read cleanly and CommentChecker is quiet except for known
false positives (PLC/protocol terms, event/IEqualityComparer inheritdoc).
Doc/comment-only; no logic changed; solution builds clean.

src/Core/ZB.MOM.WW.OtOpcUa.Core/Stability/ScheduledRecycleScheduler.cs

@@ -4,7 +4,7 @@ using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
 namespace ZB.MOM.WW.OtOpcUa.Core.Stability;
 
 /// <summary>
-///     Tier C opt-in periodic-recycle driver per <c>docs/v2/plan.md</c> decision #67.
+///     Tier C opt-in periodic-recycle driver.
 ///     A tick method advanced by the caller (fed by a background timer in prod; by test clock
 ///     in unit tests) decides whether the configured interval has elapsed and, if so, drives the
 ///     supplied <see cref="IDriverSupervisor"/> to recycle the Host.