DanS 384d64ea5d feat(node): one-click "Restore original wallet" after a daemon auto-recovery ...

Adds the restore action to the wallet-auto-recovery warning: undo the daemon's
salvage by swapping the untouched original (wallet.<ts>.bak) back over the
salvaged copy and clearing the stale BDB env that triggered the false recovery,
then restarting. Modeled on beginAdoptSeedWallet (stop daemon → file ops →
restart on a worker; result pumped to the main thread for notifications).

Safety (fund-adjacent file ops on a real wallet — copy/rename only, never delete
user data):
- picks the newest wallet.<unixtime>.bak via the pure, unit-tested
  newestWalletSalvageBak(); aborts if none.
- verifies the .bak is a real Berkeley DB (probeWalletFile) before touching
  anything — won't overwrite a working wallet with a bad backup.
- stops the daemon first (stopDaemonForWalletSwitch) so wallet.dat is released.
- moves the salvaged copy aside to wallet.dat.salvaged-<ts>.dat (kept), COPIES
  the .bak into place (the .bak stays), moves database/ aside to
  database.pre-restore-<ts>.bak (kept), and drops only the transient __db.*
  BDB region files. Rolls back the move if the copy fails.
- relaunches the node even on failure so it's never left down.

The warning dialog now offers Restore original wallet / Open data folder /
Keep salvaged copy. Full-node only; lite-safe. Build clean, suite green (1/1).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-08-10 00:45:47 -05:00

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