Fix the 5 failing netx-topology-mcp tests.

Stale tests (behavior changed intentionally on 2026-08-12):
- Tool count is 16: suggestSinkHubs and classifyTopologyFabricNodes are
  documented public tools; assert them by name.
- compose_views is no longer a public layout action; assert it is
  rejected, and cover the background-job path via orbit_sweep instead.
- Dual-unit petals are nested ellipse bands with a hollow eye, not
  parallel lanes; assert side split, ordering inside the portals and
  zero crossings instead of portal-aligned lane ends.

Real bug (test failed since it was added on 2026-08-09):
press_hot_edges could never reel a long spoke in to its r_use target,
because max_disp (r0*0.55) is smaller than r0 - r_use. Inward pulls along
the spoke cannot fling a leaf across the bbox, so give them a cap of
r0 - r_use. On a 1483-node dev view crossings after the op drop
25501 -> 25346; a 500-node view is unchanged; runtime unchanged.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/netx-topology-mcp/tests/test_mcp_topology.py

@@ -18,8 +18,10 @@ from netx_topology_mcp.server import _fetch_scopes
 
 def test_tool_list_has_draw_and_query_tools() -> None:
     names = {str(t.get("name") or "") for t in HTTP_MCP_TOOLS}
-    assert len(names) == 14
+    assert len(names) == 16
     assert "sinkTopologyDualUnits" in names
+    assert "suggestSinkHubs" in names
+    assert "classifyTopologyFabricNodes" in names
     assert "copyTopologyViewNodes" in names
     assert "createTopologyFolder" in names
     assert "createTopologyView" not in names
@@ -547,8 +549,10 @@ def test_stdio_initialize_and_tools_list() -> None:
         proc.stdin.flush()
         list_resp = json.loads(proc.stdout.readline())
         tools = list_resp["result"]["tools"]
-        assert len(tools) == 14
+        assert len(tools) == 16
         names = {t["name"] for t in tools}
+        assert "suggestSinkHubs" in names
+        assert "classifyTopologyFabricNodes" in names
         assert "createTopologyView" not in names
         assert "listTopologyViews" not in names
         assert "queryTopologyFabricNodes" in names