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a3983f5a89
The mnemonic/wallet generation was using a constant zero-byte array for entropy ([0u8; 32]), making all wallets deterministic based solely on the password. This commit introduces proper random entropy using OsRng and enables users to back up their recovery phrase. Changes: - SeedHolder::new_mnemonic() now uses OsRng for 256-bit random entropy and returns the generated mnemonic - Added SeedHolder::from_mnemonic() to recover a wallet from an existing mnemonic phrase - WalletChainStore::new_storage() returns the mnemonic for user backup - Added WalletChainStore::restore_storage() for recovery from a mnemonic - WalletCore::new_init_storage() now returns the mnemonic - Renamed reset_storage to restore_storage, which accepts a mnemonic for recovery - CLI displays the recovery phrase when a new wallet is created - RestoreKeys command now prompts for the mnemonic phrase via read_mnemonic_from_stdin() Note: The password parameter is retained for future storage encryption but is no longer used in seed derivation (empty passphrase is used instead). This means the mnemonic alone is sufficient to recover accounts. Usage: On first wallet initialization, users will see: IMPORTANT: Write down your recovery phrase and store it securely. This is the only way to recover your wallet if you lose access. Recovery phrase: word1 word2 word3 ... word24 To restore keys: wallet restore-keys --depth 5 Input recovery phrase: <24 words> Input password: <password>