docs(src): add missing XML docs and strip tracking-ID comments

Sweep of 203 source files resolving CommentChecker findings: add
<summary>/<param>/<returns>/<inheritdoc> where missing, and remove
resolved task/issue tracking markers (Tests-NNN, Worker-NNN, Server-NNN,
Task N) from code comments. Comment/doc-only — no logic changes.
Server+Tests build clean under TreatWarningsAsErrors.

src/ZB.MOM.WW.MxGateway.Server/Security/Authorization/GatewayBrowseScopeProvider.cs

@@ -8,7 +8,9 @@ namespace ZB.MOM.WW.MxGateway.Server.Security.Authorization;
 public sealed class GatewayBrowseScopeProvider(IGatewayRequestIdentityAccessor identityAccessor)
     : IGalaxyBrowseScopeProvider
 {
-    /// <inheritdoc />
+    /// <summary>Resolves the Galaxy browse subtrees the calling API key is scoped to, from the ambient request identity.</summary>
+    /// <param name="context">The gRPC server call context for the in-flight browse request.</param>
+    /// <returns>The caller's configured browse subtrees, or <see langword="null"/>/empty when the caller is unscoped (full hierarchy).</returns>
     public IReadOnlyList<string>? ResolveBrowseSubtrees(ServerCallContext context)
     {
         // Invariant: the caller identity is the ambient one pushed by