fix(web5): carry node DID through to Connected Nodes routing

The backend already sends did in federation peer lists, but the Peer
type omitted it and federationNodeToPeer() dropped it when mapping. Add
did?: string to Peer and pass node.did through, so trusted/observer
node rows route to Federation/Mesh by their real DID (falling back to
pubkey/onion) instead of failing the build on a missing property.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

neode-ui/src/views/web5/Web5ConnectedNodes.vue

@@ -408,6 +408,7 @@ function federationNodeToPeer(node: FederationNode): Peer {
   return {
     onion: node.onion,
     pubkey: node.pubkey,
+    did: node.did,
     name: node.name || `Federation: ${node.did?.slice(0, 16) || 'node'}`,
   }
 }

neode-ui/src/views/web5/types.ts

@@ -159,4 +159,4 @@ export interface DwnMessageEntry {
 
 export type VisibilityLevel = 'hidden' | 'discoverable' | 'public'
 
-export type Peer = { onion: string; pubkey: string; name?: string }
+export type Peer = { onion: string; pubkey: string; name?: string; did?: string }