scroll past env.lat output before starting TUI

When running via env.lat, push the cursor to the bottom of the screen
before print_block sets up the TUI, so we don't overwrite env.lat output.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

run_onchange_after_install_main_deps.sh.tmpl

@@ -184,6 +184,10 @@ fi
 
 if [ "$NON_INTERACTIVE" -eq 0 ]; then
   LINES=$(tput lines)
+  if [ -n "$ENVLAT" ]; then
+    # Scroll env.lat output into scrollback so the TUI starts clean
+    printf '\n%.0s' $(seq 1 $LINES)
+  fi
   print_block
   # Pre-fill env.lat bootstrap steps as already completed
   if [ -n "$ENVLAT" ]; then