feat(profile): temporarily disable gateway charge for discount wallet

- Added an alert to inform users that the gateway charge for the discount wallet is currently disabled.
- Updated the Wallet.razor file to hide the charge button for the discount wallet, with a note for future restoration.

These changes enhance user experience by providing clear communication regarding the status of the wallet charging feature.

src/FrontOffice.Main/Pages/Profile/Wallet.razor

@@ -125,9 +125,10 @@
             </MudPaper>
         }
 
+        @* ── Temporarily hidden: discount-wallet gateway charge (restore when needed)
         <!-- دکمه شارژ کیف‌پول اعتباری -->
-        <MudButton Variant="Variant.Filled" 
-                   Color="Color.Info" 
+        <MudButton Variant="Variant.Filled"
+                   Color="Color.Info"
                    Size="Size.Large"
                    FullWidth="true"
                    StartIcon="@Icons.Material.Filled.CreditCard"
@@ -135,6 +136,7 @@
                    Class="rounded-lg">
             شارژ کیف‌پول اعتباری
         </MudButton>
+        ── *@
 
         <MudPaper Elevation="2" Class="pa-4 rounded-lg">
             <MudText Typo="Typo.h6" Class="mb-2">تراکنش‌ها و مسیرهای شارژ</MudText>