I see that you have changed your interface from vlan.1 to fe-0/0/2.0 and I did not notice when responding. The proxy ARP needs to be configured on the interface that needs to reply to the ARP requests. This is now fe-0/0/2.0 rather than vlan.1. It does state in the commit error message that vlan.1 does not exist.
The command would be:
set security nat proxy-arp interface fe-0/0/2.0 address 192.168.0.30/32 to 192.169.0.35/32