Implement `Power up` part of hive power management

Requires:

1. !298 (merged) (to change the inputs to the new)

clive/__private/core/commands/data_retrieval/hive_power_data.py

@@ -43,7 +43,7 @@ class HivePowerData:
     delegated_balance: SharesBalance
     next_vesting_withdrawal: datetime
     to_withdraw: SharesBalance
-    withdraw_routes: int
+    next_power_down: int
     current_hp_apr: str
 
 
@@ -78,7 +78,7 @@ class HivePowerDataRetrieval(CommandDataRetrieval[HarvestedDataRaw, SanitizedDat
             delegated_balance=self._create_balance_representation(data.dgpo, delegated_shares),
             next_vesting_withdrawal=data.core_account.next_vesting_withdrawal,
             to_withdraw=self._create_balance_representation(data.dgpo, Asset.vests(data.core_account.to_withdraw)),
-            withdraw_routes=data.core_account.withdraw_routes,
+            next_power_down=int(data.core_account.vesting_withdraw_rate.amount),
             current_hp_apr=self._calculate_current_hp_apr(data.dgpo),
         )