docs: fill missing XML docs and strip tracking IDs from src comments

Clears CommentChecker findings in src/ (3,280 -> 209, the remainder being false
positives like PLC-5/IEEE-754/M0.0) by adding missing summaries/params/returns,
normalising inheritdoc usage, and removing Gitea/review tracking IDs while keeping
the rationale they annotated. Comment-only: comment-stripped sources are identical
to the parent commit.

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/DisplayText.cs

@@ -5,7 +5,7 @@ namespace ZB.MOM.WW.OtOpcUa.AdminUI.Components.Shared;
 /// </summary>
 /// <remarks>
 ///     <para>
-///         <b>Why this exists (#504).</b> Several pages abbreviated a hash / thumbprint with the range
+///         <b>Why this exists.</b> Several pages abbreviated a hash / thumbprint with the range
 ///         operator — <c>@s.SourceHash[..12]…</c> — which throws
 ///         <see cref="ArgumentOutOfRangeException"/> the moment the value is shorter than the slice.
 ///         In Blazor that escapes <c>BuildRenderTree</c> unhandled and takes the <b>whole page</b> to an