feat(admin): mount command palette + plumb addons to sidebar

- mount <CommandPalette /> in admin layout (Cmd+K)
- fetch getEnabledAddons(activeBrandId) for sidebar gating
- pass enabledAddons to AdminSidebar so Water Log / Route Trace hide when off

src/app/admin/layout.tsx

@@ -10,6 +10,8 @@ import { ToastProvider } from "@/components/admin/Toast";
 import { ToastContainer } from "@/components/admin/ToastContainer";
 import { SmoothViewTransition } from "@/components/transitions/SmoothViewTransition";
 import { RouteAnnouncer } from "@/components/transitions/RouteAnnouncer";
+import CommandPalette from "@/components/admin/CommandPalette";
+import { getEnabledAddons } from "@/actions/billing/stripe-portal";
 
 // Admin layout calls getAdminUser() which reads cookies(). Without this,
 // Next.js tries to prerender the entire /admin/* tree statically and the
@@ -99,6 +101,17 @@ export default async function AdminLayout({ children }: { children: React.ReactN
     console.error("[admin/layout] listBrandsForAdmin failed:", err);
   }
 
+  // Fetch enabled add-ons for the active brand. Used to gate Water Log /
+  // Route Trace visibility in the sidebar. Empty object = all show.
+  let enabledAddons: Record<string, boolean> = {};
+  if (activeBrandId) {
+    try {
+      enabledAddons = await getEnabledAddons(activeBrandId);
+    } catch (err) {
+      console.error("[admin/layout] getEnabledAddons failed:", err);
+    }
+  }
+
   return (
     <ToastProviderWrapper>
       <AdminSidebar
@@ -106,7 +119,10 @@ export default async function AdminLayout({ children }: { children: React.ReactN
         brandIds={adminUser.brand_ids}
         activeBrandId={activeBrandId}
         brands={brands}
+        enabledAddons={enabledAddons}
       />
+      {/* Cmd+K command palette — mounted globally so any admin page can summon it */}
+      <CommandPalette />
       {/* The main content area swaps on every navigation. Wrapping
           it in <SmoothViewTransition> opts the swap into a soft
           crossfade via the View Transitions API — sidebar and