refactor: Migrate from ActivityPub federation to native Swarm network

- Remove ActivityPub infrastructure (webfinger, nodeinfo, inbox, activities, signatures)
- Implement native peer-to-peer Swarm network with gossip protocol
- Replace federated timeline with Swarm timeline aggregating posts from all nodes
- Migrate direct messaging to end-to-end encrypted Swarm Chat system
- Update user interactions (follow, like, repost) to use Swarm protocol
- Add cryptographic key management for DID-based identity system
- Remove server-bound identity model in favor of portable DID identities
- Update documentation to reflect Swarm architecture and capabilities
- Add debug utilities and chat testing tools for Swarm network
- Refactor database schema to support distributed user directory
- Update bot framework to work with Swarm network interactions
- Simplify API routes to use Swarm protocol instead of ActivityPub
- This transition enables true peer-to-peer communication, instant interactions, and encrypted messaging while maintaining sovereign identity through DIDs

src/app/page.tsx

@@ -211,8 +211,20 @@ export default function Home() {
         </div>
       ) : posts.length === 0 ? (
         <div style={{ padding: '48px', textAlign: 'center', color: 'var(--foreground-tertiary)' }}>
-          <p>No posts yet</p>
-          <p style={{ fontSize: '13px', marginTop: '8px' }}>Be the first to post something!</p>
+          {feedType === 'curated' ? (
+            <>
+              <p>No posts from the swarm yet</p>
+              <p style={{ fontSize: '13px', marginTop: '8px' }}>
+                The curated feed shows posts from other nodes in the Synapsis network. 
+                Check back later as nodes are discovered, or switch to Latest to see posts from people you follow.
+              </p>
+            </>
+          ) : (
+            <>
+              <p>No posts yet</p>
+              <p style={{ fontSize: '13px', marginTop: '8px' }}>Be the first to post something!</p>
+            </>
+          )}
         </div>
       ) : (
         <>