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/python/src/mxgateway/galaxy.py

@@ -18,11 +18,13 @@ import grpc
 from google.protobuf.timestamp_pb2 import Timestamp
 
 from .auth import merge_metadata
-from .errors import map_rpc_error
+from .errors import MxGatewayError, map_rpc_error
 from .generated import galaxy_repository_pb2 as galaxy_pb
 from .generated import galaxy_repository_pb2_grpc as galaxy_pb_grpc
 from .options import ClientOptions, create_channel
 
+_DISCOVER_HIERARCHY_PAGE_SIZE = 5000
+
 
 class GalaxyRepositoryClient:
     """Async client for the Galaxy Repository gRPC service."""
@@ -115,12 +117,27 @@ class GalaxyRepositoryClient:
     async def discover_hierarchy(self) -> list[galaxy_pb.GalaxyObject]:
         """Return the deployed Galaxy object hierarchy as raw proto messages."""
 
-        reply = await self._unary(
-            "discover hierarchy",
-            self.raw_stub.DiscoverHierarchy,
-            galaxy_pb.DiscoverHierarchyRequest(),
-        )
-        return list(reply.objects)
+        objects: list[galaxy_pb.GalaxyObject] = []
+        seen_page_tokens: set[str] = set()
+        page_token = ""
+        while True:
+            reply = await self._unary(
+                "discover hierarchy",
+                self.raw_stub.DiscoverHierarchy,
+                galaxy_pb.DiscoverHierarchyRequest(
+                    page_size=_DISCOVER_HIERARCHY_PAGE_SIZE,
+                    page_token=page_token,
+                ),
+            )
+            objects.extend(reply.objects)
+            page_token = reply.next_page_token
+            if not page_token:
+                return objects
+            if page_token in seen_page_tokens:
+                raise MxGatewayError(
+                    f"galaxy discover hierarchy returned repeated page token {page_token!r}"
+                )
+            seen_page_tokens.add(page_token)
 
     def watch_deploy_events(
         self,