Fix for onchain_history summary building

.gitignore

@@ -14,6 +14,8 @@ env/
 bin/
 /app.fil
 .idea
+.mypy_cache
+.vscode
 
 # icons
 electrum/gui/kivy/theming/light-0.png

electrum/wallet.py

@@ -587,9 +587,9 @@ class Abstract_Wallet(AddressSynchronizer):
             out.append(item)
         # add summary
         if out:
-            b, v = out[0]['balance'].value, out[0]['bc_value'].value
+            b, v = out[0]['bc_balance'].value, out[0]['bc_value'].value
             start_balance = None if b is None or v is None else b - v
-            end_balance = out[-1]['balance'].value
+            end_balance = out[-1]['bc_balance'].value
             if from_timestamp is not None and to_timestamp is not None:
                 start_date = timestamp_to_datetime(from_timestamp)
                 end_date = timestamp_to_datetime(to_timestamp)