Add transaction broadcast, confirmation polling and RBF fee-bump

Shared per-user locking to serialize bet/withdrawal PSBT builds
(tx/locks.py), a confirmation poller for pending outgoing transactions,
and the timeout->fee-bump->rebroadcast loop used by bets, payouts and
withdrawals alike (tx/broadcast.py).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
2026-07-21 10:25:57 +02:00
co-authored by Claude Sonnet 5
parent 107e592704
commit fc2aadbc7e
6 changed files with 515 additions and 0 deletions
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