fix(ui): объединить параллельные связи OSPF в читаемый граф

components/ospf-topology-scope.tsx

@@ -41,7 +41,7 @@ export function OspfTopologyScope({ nodes, edges, selectedId, onSelect, width, h
     const peers = nodes.filter(node => node.id !== focal?.id && ids.has(node.id))
     const radiusX = width * 0.39, radiusY = height * 0.30
     const positioned = peers.map((node, index) => {
-      const angle = 2 * Math.PI * index / peers.length - Math.PI / 2
+      const angle = peers.length === 1 ? 0 : 2 * Math.PI * index / peers.length - Math.PI / 2
       return { ...node, x: width / 2 + radiusX * Math.cos(angle), y: height / 2 + radiusY * Math.sin(angle) }
     })
     return { nodes: focal ? [{ ...focal, x: width / 2, y: height / 2 }, ...positioned] : [], edges: visibleEdges, nodeStates }