docs(src): fix CommentChecker findings across src/ — 1,032 → 5 (all false positives)

Comment/XML-doc changes only, no code logic:
- strip project-tracking references (WP*, P*-*, row-NN, #NN, Task N) from
  comments, keeping the explanatory rationale
- add missing summaries, <param>, <returns>, <typeparam> and <inheritdoc/>
- replace misused <inheritdoc/> with real docs; where <inheritdoc/> was
  combined with useful remarks, move the rationale into // comments
- drop stale replicationActor <param> on DeploymentManagerActor ctor

Remaining 5 are false positives (CWE-1236 x2, failures-1, year-0001, M365).
Build 0 errors / 0 warnings.

src/ZB.MOM.WW.ScadaBridge.CLI/Commands/FlowDebugCommands.cs

@@ -215,6 +215,8 @@ public static class FlowDebugCommands
     /// means "no parameters". Throws <see cref="JsonException"/> on malformed input or a
     /// non-object root (the inbound API body is always a flat JSON object).
     /// </summary>
+    /// <param name="json">The raw <c>--params</c> JSON text, or null/blank for none.</param>
+    /// <returns>The parsed root object, or null when no parameters were supplied.</returns>
     internal static JsonElement? ParseParameters(string? json)
     {
         if (string.IsNullOrWhiteSpace(json))