Find a flow's declared inputs and outputs in the global search

/search lists each input and batch output under its qualified message,
and picking one opens the flow on the label's id, which the editor now
treats like a click on the label: it opens the flow's settings.

frontend/src/components/Flow/FlowEditor.tsx

@@ -240,7 +240,7 @@ function FlowEditorInner({
   onReload,
 }: {
   flowName: string
-  /** A node to arrive on, from the address bar. */
+  /** A node or endpoint to arrive on, from the address bar. */
   focus?: string
   onReload: () => void
 }) {
@@ -272,7 +272,10 @@ function FlowEditorInner({
   const [canvasNodes, setCanvasNodes, onNodesChange] = useUnpositionedNodes(
     detail.definition.nodes ?? [],
   )
-  const [selectedId, setSelectedId] = useState<string | null>(focus ?? null)
+  // An endpoint is never selected; arriving on one opens it instead (below).
+  const [selectedId, setSelectedId] = useState<string | null>(
+    focus && !isEndpointNode({ id: focus }) ? focus : null,
+  )
   const [paletteOpen, setPaletteOpen] = useState(false)
   const [inspected, setInspected] = useState<InspectedEdge | null>(null)
   // The edges are derived, so xyflow's own selection would be thrown away on
@@ -642,10 +645,18 @@ function FlowEditorInner({
   // The canvas is not remounted per node — that would throw the session away
   // on every click in the brain graph — so arriving at a flow already open
   // only changes the address. Seeded above for the first arrival, set here for
-  // the ones after it.
+  // the ones after it. An endpoint — an input or output found by the search —
+  // does what clicking its label does, which also covers one the canvas does
+  // not draw because a dashboard already accounts for it.
   useEffect(() => {
-    if (focus) setSelectedId(focus)
-  }, [focus])
+    if (!focus) return
+    if (isEndpointNode({ id: focus })) {
+      openEndpoint(focus)
+    } else {
+      setFlowPanelOpen(false)
+      setSelectedId(focus)
+    }
+  }, [focus, openEndpoint])
 
   const selected = definitions.find((node) => node.id === selectedId) ?? null
   // A panel is the view you are working in, so it takes the room — but never
@@ -1499,7 +1510,7 @@ export function FlowEditor({
   focus,
 }: {
   flowName: string
-  /** A node to select on arrival — see `FlowEditorInner`. */
+  /** A node or endpoint to arrive on — see `FlowEditorInner`. */
   focus?: string
 }) {
   const navigate = useNavigate()