fix(#5): avoid clobbering conflicting reciprocal port connections

src/lib/data/networkEditor.ts

@@ -119,10 +119,21 @@ function ensureReciprocalConnections(data: NetworkData) {
 					continue;
 				}
 
-			targetPort.connectedTo = {
+				const expectedReciprocal = {
 					device: owner.name,
 					port: port.portName
 				};
+				if (!targetPort.connectedTo) {
+					targetPort.connectedTo = expectedReciprocal;
+					continue;
+				}
+
+				const hasMatchingReciprocal =
+					equalsIgnoreCase(targetPort.connectedTo.device, owner.name) &&
+					equalsIgnoreCase(targetPort.connectedTo.port, port.portName);
+				if (hasMatchingReciprocal) {
+					continue;
+				}
 			}
 		}
 	}