Fix swarm signature verification payloads

src/app/api/swarm/gossip/route.ts

@@ -29,6 +29,7 @@ const nodeInfoSchema = z.object({
   softwareVersion: z.string().optional(),
   userCount: z.number().optional(),
   postCount: z.number().optional(),
+  isNsfw: z.boolean().optional(),
   capabilities: z.array(z.enum(['handles', 'gossip', 'relay', 'search', 'interactions'])).optional(),
   lastSeenAt: z.string().optional(),
 });