feat(swarm): Implement decentralized node discovery and content federation system

- Add swarm node registry with discovery, gossip, and timeline synchronization
- Implement database schema for swarm nodes, seeds, and sync logs with proper indexing
- Create swarm API endpoints for node discovery, gossip protocol, timeline sharing, and announcements
- Add content moderation features with NSFW flagging and muted nodes support
- Implement user settings pages for content filtering and node moderation
- Add background scheduler for automated swarm synchronization and node health checks
- Create .well-known endpoint for swarm protocol discovery
- Remove legacy bot-cron.ts in favor of integrated scheduler system
- Add user account NSFW preferences and age verification tracking
- Update database schema with swarm-related tables and user moderation fields
- Enhance post and user components to support federated content display
- Add instrumentation for monitoring swarm operations and node health

src/app/api/admin/node/route.ts

@@ -25,6 +25,7 @@ export async function PATCH(req: NextRequest) {
                 bannerUrl: data.bannerUrl,
                 logoUrl: data.logoUrl,
                 accentColor: data.accentColor,
+                isNsfw: data.isNsfw ?? false,
             }).returning();
         } else {
             [node] = await db.update(nodes)
@@ -36,6 +37,7 @@ export async function PATCH(req: NextRequest) {
                     bannerUrl: data.bannerUrl,
                     logoUrl: data.logoUrl,
                     accentColor: data.accentColor,
+                    isNsfw: data.isNsfw ?? node.isNsfw,
                     updatedAt: new Date(),
                 })
                 .where(eq(nodes.id, node.id))