Add wallet_name option to basicswap.json.

Removed "walletfile" setting for XMR and WOW, replaced with "wallet_name".
Set wallet_name in prepare script with eg: BTC_WALLET_NAME env var.

basicswap/interface/xmr.py

@@ -2,7 +2,7 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2020-2024 tecnovert
-# Copyright (c) 2024 The Basicswap developers
+# Copyright (c) 2024-2025 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -99,6 +99,7 @@ class XMRInterface(CoinInterface):
         self._log = self._sc.log if self._sc and self._sc.log else logging
         self._wallet_password = None
         self._have_checked_seed = False
+        self._wallet_filename = coin_settings.get("wallet_name", "swap_wallet")
 
         daemon_login = None
         if coin_settings.get("rpcuser", "") != "":
@@ -175,9 +176,6 @@ class XMRInterface(CoinInterface):
         ensure(new_priority >= 0 and new_priority < 4, "Invalid fee_priority value")
         self._fee_priority = new_priority
 
-    def setWalletFilename(self, wallet_filename):
-        self._wallet_filename = wallet_filename
-
     def createWallet(self, params):
         if self._wallet_password is not None:
             params["password"] = self._wallet_password