Refresh Fleet with discovery, operation progress, and lobby watches

src/routes/+layout.svelte

@@ -3,6 +3,7 @@
     import { afterNavigate, onNavigate, goto } from '$app/navigation';
     import { startPipelineStream } from '$ui/stores/pipeline.js';
     import { startServerStream } from '$ui/stores/servers.js';
+    import { startFleetMonitor } from '$ui/stores/fleet.js';
     import { page } from '$app/stores';
     import BrandMark from '$ui/components/BrandMark.svelte';
     import Toaster from '$ui/components/Toaster.svelte';
@@ -28,6 +29,7 @@
     onMount(() => {
         startPipelineStream();
         startServerStream();
+        const stopFleetMonitor = startFleetMonitor();
 
         // Two-key nav shortcuts (Gmail-style): `g f` fleet, `g d` deployments,
         // `g b` betas, `g s` scripts. Ignored while typing in inputs.
@@ -61,6 +63,7 @@
         };
         window.addEventListener('keydown', onKey);
         return () => {
+            stopFleetMonitor();
             window.removeEventListener('keydown', onKey);
             if (armTimer) clearTimeout(armTimer);
         };