Add IsProdEnvironment SignalR endpoint and env flag setup

Added IsProdEnvironment SignalR endpoint to FruitBankDataController for runtime environment checks. Set production status globally in PluginNopStartup via FruitBankConst.SetIsProd. Minor code and using updates. README.md binary updated.

Nop.Plugin.Misc.AIPlugin/Controllers/FruitBankDataController.cs

@@ -900,6 +900,14 @@ namespace Nop.Plugin.Misc.FruitBankPlugin.Controllers
             return customers; //.ToModelDto<CustomerDto>();
         }
 
+        [SignalR(SignalRTags.IsProdEnvironment)]
+        public Task<bool> IsProdEnvironment()
+        {
+            _logger.Detail("IsProdEnvironment invoked");
+
+            return Task.FromResult(FruitBankConst.IsProd());
+        }
+
         [SignalR(SignalRTags.GetCustomerRolesByCustomerId)]
         public async Task<List<CustomerRole>> GetCustomerRolesByCustomerId(int customerId)
         {

Nop.Plugin.Misc.AIPlugin/Infrastructure/PluginNopStartup.cs

@@ -49,6 +49,7 @@ using AyCode.Services.Nav.Ekaer.Models;
 using FruitBank.Common.Services.Ekaer;
 using FruitBank.Common.Server.Services.Ekaer;
 using System.Security.Authentication;
+using FruitBank.Common.Server;
 
 namespace Nop.Plugin.Misc.FruitBankPlugin.Infrastructure;
 
@@ -302,8 +303,7 @@ public class PluginNopStartup : INopStartup
 
         var catalog = new SqlConnectionStringBuilder(connectionString).InitialCatalog;
 
-        var isDev = catalog.Contains("_DEV", StringComparison.OrdinalIgnoreCase)
-                 || catalog.Contains("_TEST", StringComparison.OrdinalIgnoreCase);
+        var isDev = catalog.Contains("_DEV", StringComparison.OrdinalIgnoreCase) || catalog.Contains("_TEST", StringComparison.OrdinalIgnoreCase);
         var isProd = catalog.Contains("_PROD", StringComparison.OrdinalIgnoreCase);
 
         if (isProd == isDev)
@@ -311,6 +311,8 @@ public class PluginNopStartup : INopStartup
                 $"Database catalog '{catalog}' cannot be classified: isProd={isProd}, isDev={isDev}. " +
                 "Fix the catalog naming or the detection rules — refusing to start with an ambiguous environment badge.");
 
+        FruitBankConst.SetIsProd(isProd);
+
         try
         {
             if (!OperatingSystem.IsWindows()) return;