Add persisted per-view port anchors and connection-aware border placement

crates/oa-core/tests/routing_geometry.rs

@@ -357,9 +357,12 @@ fn workshop_automatic_labels_are_readable_without_mutating_authored_routes() {
                         size
                     }
                 ),
-                "{} overlaps {}",
+                "{} overlaps {}: label {:?}, node {:?}, path {:?}",
                 label.text,
-                p.named(node.element)
+                p.named(node.element),
+                label.bounds,
+                node,
+                routed.edges[&edge.id].points
             );
         }
     }