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_edge_axis.py

@@ -0,0 +1,52 @@
+"""edge_axis: prefer H/V edges, horizontal over vertical."""
+
+from __future__ import annotations
+
+from netx_topology_mcp.layout_metrics import compute_edge_axis
+from netx_topology_mcp.layout_stats import analyze_layout_stats
+
+
+def test_all_horizontal_scores_one() -> None:
+    pos = {"a": (0.0, 0.0), "b": (200.0, 0.0), "c": (400.0, 2.0)}  # 2px ≈ H
+    links = [("a", "b"), ("b", "c")]
+    m = compute_edge_axis(pos, links)
+    assert m["horiz_n"] == 2
+    assert m["diag_n"] == 0
+    assert float(m["edge_axis_score"]) == 1.0
+
+
+def test_diagonal_scores_zero() -> None:
+    pos = {"a": (0.0, 0.0), "b": (100.0, 100.0)}
+    m = compute_edge_axis(pos, [("a", "b")])
+    assert m["diag_n"] == 1
+    assert float(m["edge_axis_score"]) == 0.0
+    assert m["top_skew_edges"]
+
+
+def test_horizontal_beats_vertical() -> None:
+    h = compute_edge_axis(
+        {"a": (0.0, 0.0), "b": (200.0, 0.0)},
+        [("a", "b")],
+    )
+    v = compute_edge_axis(
+        {"a": (0.0, 0.0), "b": (0.0, 200.0)},
+        [("a", "b")],
+    )
+    assert float(h["edge_axis_score"]) > float(v["edge_axis_score"])
+    assert float(v["edge_axis_score"]) == 0.75
+
+
+def test_analyze_report_includes_edge_axis() -> None:
+    nodes = [
+        {"fabric_node_id": "a", "name": "A", "x": 0.0, "y": 0.0},
+        {"fabric_node_id": "b", "name": "B", "x": 100.0, "y": 100.0},
+        {"fabric_node_id": "c", "name": "C", "x": 200.0, "y": 0.0},
+    ]
+    edges = [
+        {"a_node_id": "a", "b_node_id": "b"},
+        {"a_node_id": "b", "b_node_id": "c"},
+    ]
+    m = analyze_layout_stats(nodes, edges)
+    assert "edge_axis" in m["score"]["parts"]
+    assert m["report"]["edge_axis"]["status"] in {"warn", "fail"}
+    assert int(m["diag_n"] or 0) >= 1