cleanup billing management for admin

js/src/features/network-billing.tsx

@@ -145,7 +145,7 @@ function FreePlanView({
             <div>
               <CardTitle>Llink Free</CardTitle>
               <CardDescription>
-                Current plan · up to 50 particles per day
+                Current plan · up to 50 messages per day
               </CardDescription>
             </div>
             <Badge variant="secondary">Free</Badge>
@@ -157,14 +157,6 @@ function FreePlanView({
         <p className="text-muted-foreground mb-2 px-1 text-xs font-medium uppercase tracking-wider">
           Upgrade to Pro
         </p>
-        <ul className="text-muted-foreground mb-4 space-y-1.5 px-1 text-sm">
-          {features.map((f) => (
-            <li key={f} className="flex items-center gap-2">
-              <Check className="text-primary size-3.5" />
-              {f}
-            </li>
-          ))}
-        </ul>
 
         <div className="flex flex-col gap-3 sm:flex-row">
           <PricingCard

js/src/features/network-root.tsx

@@ -1,13 +1,16 @@
 import { useCallback, useState } from "react";
 import { useNavigate, useParams, useSearchParams } from "react-router-dom";
-import { CircleDot, CircleCheckBig } from "lucide-react";
+import { CircleDot, CircleCheckBig, CreditCard } from "lucide-react";
 import { particlePath } from "@/lib/particle-path";
 import { ParticleListView } from "@/features/particles/particle-list-view";
 import { VideoAudioToggle } from "@/components/video-audio-toggle";
 import { ComposeOverlay } from "./compose/compose-overlay";
+import { Button } from "@/components/ui/button";
 import { Tabs, TabsList, TabsTrigger } from "@/components/ui/tabs";
 import { useStreamParticles } from "@/hooks/use-stream-particles";
 import { useStreamKeyboardNav } from "@/hooks/use-stream-keyboard-nav";
+import { useNetworks } from "@/hooks/use-networks";
+import { useAuthStore } from "@/stores/auth-store";
 
 /**
  * Route-level component for /:networkId (index).
@@ -18,6 +21,11 @@ export default function NetworkRoot() {
   const navigate = useNavigate();
   const path = particlePath(networkId!, []);
 
+  const { data: networks } = useNetworks();
+  const network = networks?.find((n) => n.id === networkId);
+  const currentUser = useAuthStore((s) => s.user);
+  const isAdmin = currentUser?.id === network?.admin_human.id;
+
   const [composeActive, setComposeActive] = useState(false);
   const [searchParams, setSearchParams] = useSearchParams();
   const statusTab: "open" | "closed" =
@@ -60,6 +68,17 @@ export default function NetworkRoot() {
             <TabsTrigger value="closed"><CircleCheckBig className="size-3" /> Closed</TabsTrigger>
           </TabsList>
         </Tabs>
+        {isAdmin && (
+          <Button
+            variant="ghost"
+            size="sm"
+            className="text-muted-foreground"
+            onClick={() => navigate(`/${networkId}/settings/billing`)}
+          >
+            <CreditCard className="size-3.5" />
+            Billing
+          </Button>
+        )}
       </div>
 
       {/* Scrollable content */}