Fix fabric path search, read scope, orbit total ranking, and edge menu clamp.

Prefer BFS shortest paths, allow ne:read on path find, honor objective=total clearance trades, and keep context menus on-screen without a11y clock spam.

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

web/src/pages/TopologyPage.tsx

@@ -3370,8 +3370,7 @@ export function TopologyPage() {
       y = Math.max(pad, window.innerHeight - rect.height - pad);
     }
     if (x !== ctxMenu.x || y !== ctxMenu.y) {
-      el.style.left = `${x}px`;
-      el.style.top = `${y}px`;
+      setCtxMenu((prev) => (prev ? { ...prev, x, y } : null));
     }
   }, [ctxMenu]);
 

web/src/pages/WorkbenchPage.tsx

@@ -175,7 +175,7 @@ export function WorkbenchPage() {
   return (
     <div className="workbench">
       <section className="wb-hero" aria-label={t("workbench.title")}>
-        <div className="wb-hero__clock" aria-live="polite">
+        <div className="wb-hero__clock">
           <time className="wb-hero__clock-panel" dateTime={now.toISOString()}>
             <span className="wb-hero__clock-digits" aria-hidden="true">
               <span className="wb-hero__digit">{hh[0]}</span>

web/src/pages/topology/TopologyReactFlowView.tsx

@@ -446,10 +446,8 @@ export default function TopologyReactFlowView(props: TopologyReactFlowViewProps)
         onEdgeContextMenu={(e, edge) => {
           e.preventDefault();
           focusEdge(edge.id);
-          const pos = placeCtxMenu(e.clientX, e.clientY, {
-            w: 280,
-            h: Math.min(560, Math.max(280, window.innerHeight - 24)),
-          });
+          // Modest estimate; useLayoutEffect measures real height and clamps into state.
+          const pos = placeCtxMenu(e.clientX, e.clientY, { w: 280, h: 320 });
           setCtxMenu({ kind: "edge", id: edge.id, ...pos });
         }}
         onSelectionContextMenu={(e) => {