Build dashboards you can actually look at and press

Widgets bind to a message name and read it live off the socket the editor
already had — lifted out of the flow editor so a dashboard route gets the
same values, which also gives the home page live data for free.

The input widgets close the loop the other way: a slider publishes into
the graph and whatever consumes that message runs. Verified end to end in
the running app — moving a slider set a flow input, and the stat bound to
what the flow computed from it followed.

View mode is plain CSS grid. A wall panel that only displays should not
download the code that lets someone drag things around, and it now does
not. Editing is a widget picker, a per-widget width control and a
settings card fed by the message catalog.

No new dependencies: the slider is a range input, the gauge is an arc,
and the markdown is a five-line subset. Charts are the one widget still
missing — they need a charting library and the chart tokens the design
guidelines reserved — so they are stored and validated but not offered.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011LF61rxW1FG5YCD2J9YqjY

frontend/src/routes/_layout.tsx

@@ -1,6 +1,7 @@
 import { createFileRoute, Outlet, redirect } from "@tanstack/react-router"
 
 import { Footer } from "@/components/Common/Footer"
+import { useFlowSocket } from "@/components/Flow/useFlowSocket"
 import AppSidebar from "@/components/Sidebar/AppSidebar"
 import {
   SidebarInset,
@@ -21,6 +22,10 @@ export const Route = createFileRoute("/_layout")({
 })
 
 function Layout() {
+  // Dashboards live in this shell and read live values, so the socket belongs
+  // here rather than only inside the editor.
+  useFlowSocket()
+
   return (
     <SidebarProvider className="bg-card">
       <AppSidebar />