Converge netx-topology MCP to dual-unit drain + orbit/polish mainline.

Trim public tools to 14, expose only kept layout actions/recipes, merge Fabric queries, drop createTopologyView/listTopologyViews, and align skill/docs with the live catalog.

Co-authored-by: Cursor <cursoragent@cursor.com>

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

@@ -0,0 +1,76 @@
+"""core_bar beam-first placement in sugiyama._place_component."""
+
+from __future__ import annotations
+
+from netx_topology_mcp.layout_ops import LayoutParams, build_state_from_nodes_edges
+from netx_topology_mcp.layout_ops.sugiyama import _place_component
+
+
+def _dual_core_multi_an():
+    """Two cores on a bar, two ANs each with a small access petal."""
+    # c0 -- a0 -- e0
+    #  |     |
+    # c1 -- a1 -- e1
+    nodes = [
+        {"fabric_node_id": "c0", "name": "X-CN0-Y", "x": 0, "y": 0},
+        {"fabric_node_id": "c1", "name": "X-CN1-Y", "x": 0, "y": 0},
+        {"fabric_node_id": "a0", "name": "X-AN0-Y", "x": 0, "y": 0},
+        {"fabric_node_id": "a1", "name": "X-AN1-Y", "x": 0, "y": 0},
+        {"fabric_node_id": "e0", "name": "X-EN0-Y", "x": 0, "y": 0},
+        {"fabric_node_id": "e1", "name": "X-EN1-Y", "x": 0, "y": 0},
+        {"fabric_node_id": "e2", "name": "X-EN2-Y", "x": 0, "y": 0},
+        {"fabric_node_id": "e3", "name": "X-EN3-Y", "x": 0, "y": 0},
+    ]
+    edges = [
+        {"a_node_id": "c0", "b_node_id": "c1"},
+        {"a_node_id": "c0", "b_node_id": "a0"},
+        {"a_node_id": "c1", "b_node_id": "a1"},
+        {"a_node_id": "a0", "b_node_id": "e0"},
+        {"a_node_id": "a0", "b_node_id": "e2"},
+        {"a_node_id": "a1", "b_node_id": "e1"},
+        {"a_node_id": "a1", "b_node_id": "e3"},
+    ]
+    return nodes, edges
+
+
+def test_place_component_core_beam_collinear_cores() -> None:
+    nodes, edges = _dual_core_multi_an()
+    st = build_state_from_nodes_edges(nodes, edges)
+    assert st.layers["c0"] == "core" and st.layers["c1"] == "core"
+    assert st.layers["a0"] == "agg" and st.layers["a1"] == "agg"
+    ids = [n["fabric_node_id"] for n in nodes]
+    out = _place_component(ids, st, LayoutParams())
+    assert set(out) == set(ids)
+    # Cores approximately collinear on a horizontal beam
+    y0, y1 = out["c0"][1], out["c1"][1]
+    assert abs(y0 - y1) < 1.0
+    assert abs(out["c0"][0] - out["c1"][0]) > 100.0
+    # ANs hang off the beam (not packed into a core column): mean AN y away from beam
+    beam_y = (y0 + y1) / 2
+    an_y = (out["a0"][1] + out["a1"][1]) / 2
+    assert abs(an_y - beam_y) > 80.0
+    # Beam-first: both cores share one y; ANs are not co-located with cores as a column pack
+    assert abs(out["a0"][1] - beam_y) > 40.0
+    assert abs(out["a1"][1] - beam_y) > 40.0
+
+
+def test_place_component_single_core_still_packs() -> None:
+    """One core keeps the legacy AN-column pack path (no beam branch)."""
+    nodes = [
+        {"fabric_node_id": "c0", "name": "X-CN0-Y", "x": 0, "y": 0},
+        {"fabric_node_id": "a0", "name": "X-AN0-Y", "x": 0, "y": 0},
+        {"fabric_node_id": "a1", "name": "X-AN1-Y", "x": 0, "y": 0},
+        {"fabric_node_id": "e0", "name": "X-EN0-Y", "x": 0, "y": 0},
+        {"fabric_node_id": "e1", "name": "X-EN1-Y", "x": 0, "y": 0},
+    ]
+    edges = [
+        {"a_node_id": "c0", "b_node_id": "a0"},
+        {"a_node_id": "c0", "b_node_id": "a1"},
+        {"a_node_id": "a0", "b_node_id": "e0"},
+        {"a_node_id": "a1", "b_node_id": "e1"},
+    ]
+    st = build_state_from_nodes_edges(nodes, edges)
+    ids = [n["fabric_node_id"] for n in nodes]
+    out = _place_component(ids, st, LayoutParams())
+    assert set(out) == set(ids)
+    assert "c0" in out