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.
Cross-module fix from the review sweep. -003 (Medium): the browser's JsonOpts lacked
JsonStringEnumConverter (the factory+probe both carry it), so AdminUI string-enum configs
(AuthType/SecurityPolicy/SecurityMode/TargetNamespaceKind) threw on deserialize. Added the
converter (accepts string AND numeric) + TDD.
Joseph Doherty