PASS: integer normalized
PASS: decimal normalized
PASS: invalid amount 99.99
PASS: invalid amount -100
PASS: invalid amount 1e3
PASS: invalid amount 100.001
PASS: invalid amount NaN
PASS: invalid amount 100abc
PASS: invalid amount 1000000000
PASS: invalid amount 0100
PASS: invalid amount 
PASS: documented BDT payload
PASS: invalid channel
PASS: invalid method
PASS: invalid number
PASS: invalid name
PASS: nested payout ID
PASS: top-level payout ID
PASS: success alone never confirms payout
PASS: unsafe reference rejected
PASS: nested secrets redacted
PASS: failed balance is not a success
PASS: documented balance success
PASS: duplicate token rejected
PASS: in-flight hold survives durable insert
All 25 offline checks passed. No live calls made.