Price reminder and init approval

* Start price reminder grain

* Add config and init grain at startup

* Save init wallet when already init

src/Managing.Application/Accounts/AccountService.cs

@@ -333,6 +333,34 @@ public class AccountService : IAccountService
         }
     }
 
+    public async Task<List<ExchangeApprovalStatus>> GetExchangeApprovalStatusAsync(User user)
+    {
+        var accounts = await GetAccountsByUserAsync(user, hideSecrets: true, getBalance: false);
+        
+        var exchangeStatuses = new List<ExchangeApprovalStatus>();
+        
+        foreach (var account in accounts)
+        {
+            exchangeStatuses.Add(new ExchangeApprovalStatus
+            {
+                Exchange = TradingExchanges.GmxV2,
+                IsApproved = account.IsGmxInitialized
+            });
+        }
+        
+        // Future: Add other exchanges here when supported
+        // e.g.:
+        // var hasEvmInitialized = accounts.Any(account => 
+        //     account.Exchange == TradingExchanges.Evm && account.IsGmxInitialized);
+        // exchangeStatuses.Add(new ExchangeApprovalStatus
+        // {
+        //     Exchange = TradingExchanges.Evm,
+        //     IsApproved = hasEvmInitialized
+        // });
+        
+        return exchangeStatuses;
+    }
+
     private async Task ManagePropertiesAsync(bool hideSecrets, bool getBalance, Account account)
     {
         if (account != null)