add copyable slice uri to slice overview page

frontend-v2/src/components/CopyableField.tsx

···
 interface CopyableFieldProps {
   value: string;
   label: string;
+  variant?: "input" | "inline";
 }
 
-export function CopyableField({ value, label }: CopyableFieldProps) {
+export function CopyableField({ value, label, variant = "input" }: CopyableFieldProps) {
   const [copied, setCopied] = useState(false);
 
   const handleCopy = async () => {
···
       console.error("Failed to copy:", err);
     }
   };
+
+  if (variant === "inline") {
+    return (
+      <div className="flex items-center gap-2 group">
+        <span className="text-xs text-zinc-500">{label}:</span>
+        <span className="font-mono text-xs text-zinc-600 break-all">
+          {value}
+        </span>
+        <button
+          type="button"
+          onClick={handleCopy}
+          className="p-1 text-zinc-400 hover:text-zinc-300 transition-colors rounded hover:bg-zinc-700/50 flex-shrink-0 opacity-0 group-hover:opacity-100"
+          title="Copy to clipboard"
+        >
+          {copied ? (
+            <Check size={14} className="text-green-400" />
+          ) : (
+            <Copy size={14} />
+          )}
+        </button>
+      </div>
+    );
+  }
 
   return (
     <div>

frontend-v2/src/pages/SliceOverview.tsx

···
 import { useSessionContext } from "../lib/useSession.ts";
 import { isSliceOwner } from "../lib/permissions.ts";
 import { Plus } from "lucide-react";
+import { CopyableField } from "../components/CopyableField.tsx";
 
 export default function SliceOverview() {
   const { handle, rkey } = useParams<{ handle: string; rkey: string }>();
···
       }
     >
       <div className="mb-8">
-        <div className="flex items-center gap-3">
+        <div className="flex items-center gap-3 mb-4">
           <Avatar
             src={slice?.networkSlicesActorProfile?.avatar?.url}
             alt={`${handle} avatar`}
···
             </p>
           </div>
         </div>
+        {slice?.uri && (
+          <CopyableField value={slice.uri} label="Slice URI" variant="inline" />
+        )}
       </div>
 
       {/* Stats Section */}