feat(mesh): show federated Archipelago nodes on the Mesh Map

Peers that opt in via a new "Share Location" toggle in Settings
(server.set-location RPC) get plotted on other trusted peers' Mesh Map
with a distinct Archy-logo marker, separate from raw LoRa radio peers.
Location is persisted locally, carried in NodeStateSnapshot, and
propagated through federation sync/delta like other node state.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

neode-ui/src/types/api.ts

@@ -30,6 +30,9 @@ export interface ServerInfo {
   'wifi-ssids': string[]
   'zram-enabled': boolean
   'seed-backed': boolean
+  lat?: number | null
+  lon?: number | null
+  'share-location'?: boolean
 }
 
 export interface StatusInfo {