feat(create-tx): add error handling in data carrier logic

Author: nymius

src/handlers.rs

@@ -537,10 +537,16 @@ pub fn handle_offline_wallet_subcommand(
             }
 
             if let Some(base64_data) = add_data {
-                let op_return_data = BASE64_STANDARD.decode(base64_data).unwrap();
-                tx_builder.add_data(&PushBytesBuf::try_from(op_return_data).unwrap());
+                let op_return_data = BASE64_STANDARD
+                    .decode(base64_data)
+                    .map_err(|e| Error::Generic(e.to_string()))?;
+                tx_builder.add_data(
+                    &PushBytesBuf::try_from(op_return_data)
+                        .map_err(|e| Error::Generic(e.to_string()))?,
+                );
             } else if let Some(string_data) = add_string {
-                let data = PushBytesBuf::try_from(string_data.as_bytes().to_vec()).unwrap();
+                let data = PushBytesBuf::try_from(string_data.as_bytes().to_vec())
+                    .map_err(|e| Error::Generic(e.to_string()))?;
                 tx_builder.add_data(&data);
             }