Merge origin/main with local pending work and update AGENTS.md references

- Resolve 14 conflicts from popping local stash on top of origin's
  eed1e88 + 8d3352f doc-comment additions (11 mechanical, plus
  version.rs, DashboardAuthenticatorTests.cs, DashboardGalaxyProjector.cs)
- Fix 4 test files that used AGENTS.md as the repo-root sentinel
  (now use CLAUDE.md, since AGENTS.md was removed in 4731ab5)
- Redirect 10 doc citations from AGENTS.md to the matching gateway.md
  sections (Value Model, Status Model, Security, STA Worker Thread
  Model, gRPC Layer rule, cancellation rule)

Verified: solution build clean, x86 worker build clean, 266/266
gateway tests passing, 121/121 worker tests passing.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

clients/dotnet/MxGateway.Client.Cli/MxGatewayClientCli.cs

@@ -824,9 +824,7 @@ public static class MxGatewayClientCli
         TextWriter output,
         CancellationToken cancellationToken)
     {
-        DiscoverHierarchyReply reply = await client.GalaxyDiscoverHierarchyAsync(
-                new DiscoverHierarchyRequest(),
-                cancellationToken)
+        DiscoverHierarchyReply reply = await DiscoverAllGalaxyHierarchyAsync(client, cancellationToken)
             .ConfigureAwait(false);
 
         if (arguments.HasFlag("json"))
@@ -844,6 +842,39 @@ public static class MxGatewayClientCli
         return 0;
     }
 
+    private static async Task<DiscoverHierarchyReply> DiscoverAllGalaxyHierarchyAsync(
+        IMxGatewayCliClient client,
+        CancellationToken cancellationToken)
+    {
+        DiscoverHierarchyReply aggregate = new();
+        HashSet<string> seenPageTokens = new(StringComparer.Ordinal);
+        string pageToken = string.Empty;
+        do
+        {
+            DiscoverHierarchyReply page = await client.GalaxyDiscoverHierarchyAsync(
+                    new DiscoverHierarchyRequest
+                    {
+                        PageSize = 5000,
+                        PageToken = pageToken,
+                    },
+                    cancellationToken)
+                .ConfigureAwait(false);
+
+            aggregate.Objects.Add(page.Objects);
+            aggregate.TotalObjectCount = page.TotalObjectCount;
+            pageToken = page.NextPageToken;
+            if (!string.IsNullOrWhiteSpace(pageToken)
+                && !seenPageTokens.Add(pageToken))
+            {
+                throw new MxGatewayException(
+                    $"Galaxy DiscoverHierarchy returned a repeated page token '{pageToken}'.");
+            }
+        }
+        while (!string.IsNullOrWhiteSpace(pageToken));
+
+        return aggregate;
+    }
+
     private static async Task<int> GalaxyWatchAsync(
         CliArguments arguments,
         IMxGatewayCliClient client,