Reuse check_goa_ladder for stage.*lefrancpaysan.ch: auto max from
max_wire_transfer_amount (2000), min denom from /keys, explorer secret
via stagepaysan SSH, fewer default steps. Document usage in README.
Ladder used /Users/newkamek/… for bank-explorer password and wallet-cli.
Use SECRETS_ROOT/read_secret, EXP_PW/EXP_PW_FILE overrides, and
find_wallet_cli. Document Android automation prereqs; stage shop assets
also require qrcode.min.js.
Print a boxed FINAL STATISTICS block after e2e/ladder (coins, flow,
tendencies, perf, load) and match force-select reserve_pub to the current
withdrawal so cumulative ladder wallets do not reuse stale pubs.
