refactor: replace bdk::error with custom error

- replace bdk::error with custom error enum
- update imports and handling of errors

[Ticket: X]

Author: tvpeter

Cargo.lock

@@ -34,8 +34,6 @@ bdk_electrum ={ version = "0.20.1", optional = true}
 bdk_esplora ={ version = "0.20.1", features = ["async"], optional = true}
 bdk_bitcoind_rpc = {version = "0.17.1", optional = true}
 hwi = {version = "0.10.0", optional = true}
-electrum-client = "0.23.0"
-
 
 # Platform-specific dependencies
 [target.'cfg(target_arch = "wasm32")'.dependencies]

Cargo.toml

@@ -1041,7 +1041,7 @@ mod test {
                 subcommand: WalletSubCommand::OfflineWalletSubCommand(CreateTx {
                     recipients: vec![(script1, 123456), (script2, 78910)],
                     send_all: false,
-                    enable_rbf: false,
+                    enable_rbf: true,
                     offline_signer: false,
                     utxos: Some(vec!(outpoint1, outpoint2)),
                     unspendable: None,