Price reminder and init approval

* Start price reminder grain

* Add config and init grain at startup

* Save init wallet when already init

src/Managing.Domain/Evm/PrivyInitAddressResponse.cs

@@ -8,4 +8,6 @@ public class PrivyInitAddressResponse
     public string? OrderVaultHash { get; set; }
     public string? ExchangeRouterHash { get; set; }
     public string? Error { get; set; }
+    public string? Address { get; set; }
+    public bool IsAlreadyInitialized { get; set; }
 }