pod reset recovery: new SSH port, consolidated downloads to 1T volume, retire tmpfs overflow

The network volume was resized to 1TB (which reset the pod and wiped the
container disk). All weights now live persistently on /workspace; the
/dev/shm overflow scheme is no longer needed.

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

scripts/local/port-forward.sh

@@ -3,7 +3,7 @@
 # Auto-reconnects if the tunnel drops. Ctrl-C to stop.
 # Requires the echelon key loaded in your ssh agent.
 POD_HOST=216.243.220.136
-POD_PORT=14278
+POD_PORT=17561
 while true; do
   ssh -N -L 8188:127.0.0.1:8188 \
     -o ServerAliveInterval=30 -o ServerAliveCountMax=3 \