Rename Peer to 'Backing Agent'

default.nix

@@ -58,7 +58,7 @@
       ;;
       spawn)
         shift
-        run rpc ":ok = Frajtano.Agent.spawn_peer({\"/usr/bin/env\", [$(list "$@")]})"
+        run rpc ":ok = Frajtano.Agent.spawn_backing_agent({\"/usr/bin/env\", [$(list "$@")]})"
       ;;
       socket)
         echo $FRAJTANO_DIR/agent.sock