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/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/EquipmentInput.cs

@@ -4,7 +4,7 @@ namespace ZB.MOM.WW.OtOpcUa.AdminUI.Uns;
 /// Parameter object carrying the operator-editable fields for an equipment create or update,
 /// so <see cref="IUnsTreeService.CreateEquipmentAsync"/> and
 /// <see cref="IUnsTreeService.UpdateEquipmentAsync"/> avoid an unwieldy positional signature.
-/// The <c>EquipmentId</c> and <c>EquipmentUuid</c> are system-generated (decision #125) and are
+/// The <c>EquipmentId</c> and <c>EquipmentUuid</c> are system-generated and are
 /// therefore not part of this input. Optional string fields that arrive whitespace-only are
 /// collapsed to <c>null</c> by the service.
 /// </summary>