Merge kub-stage into production

- Resolved appsettings.Production.json conflict (new MerchantId, SeedWorkers)
- Removed duplicate u21 migration (kept 155925 from production)
- All features: Magic Wallet, Discount Wallet, StockMovement fix, FullInformation expansion, Wallet user_name, gateway activation

src/CMSMicroservice.WebApi/appsettings.json

@@ -1,7 +1,7 @@
 {
   "PaymentProvider": "zarinpal",
   "ZarinPal": {
-    "MerchantId": "6b098fc8-f490-47a1-aac3-1de1a1b84404",
+    "MerchantId": "4225d555-5fa9-4df0-9b61-1ce152cbbba8",
     "UseSandbox": true
   },
   "CmsBaseUrl": "https://cms.kbs1.ir",
@@ -75,6 +75,11 @@
       "CronExpression": "5 0 * * 0"
     }
   },
+  "SeedWorkers": {
+    "MagicWalletCycleSeed": {
+      "Enabled": true
+    }
+  },
   "AllowedHosts": "*",
   "Authentication": {
     "Authority": "https://ids.domain.com/",