vjrj d6781870d9 feat(backup): sealed backups + printable recovery sheet ... 'Save a backup' now writes a sealed .tanemaki file (AES-256-GCM under a key HKDF-derived from the root seed; format TANEBK v1, open and stable). Restoring on the same identity is silent; a copy sealed by another identity asks for the printed recovery code (TANE1 base32, typo-tolerant) and adopts that seed — recovering your bank recovers you. Legacy plain exports still restore. Settings gains a recovery sheet (QR + code PDF). BackupBox/RecoveryCode live in commons_core, pure Dart, TDD.		2026-07-09 22:32:13 +02:00
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src	feat(backup): sealed backups + printable recovery sheet	2026-07-09 22:32:13 +02:00
commons_core.dart	feat(backup): sealed backups + printable recovery sheet	2026-07-09 22:32:13 +02:00