fix(iam-service): add try-catch to role seeding for visible error logging

services/iam-service-net/src/IamService.API/Program.cs

@@ -269,7 +269,15 @@ if (app.Environment.IsDevelopment())
 
 // EN: Seed system roles on startup
 // VI: Seed system roles khi khởi động
-await IamService.Infrastructure.Data.DataSeeder.SeedRolesAsync(app.Services);
+try
+{
+    await IamService.Infrastructure.Data.DataSeeder.SeedRolesAsync(app.Services);
+    logger.LogInformation("System roles seeding completed successfully.");
+}
+catch (Exception ex)
+{
+    logger.LogError(ex, "Failed to seed system roles: {Message}", ex.Message);
+}
 
 // EN: Configure middleware pipeline / VI: Cấu hình middleware pipeline
 app.UseSerilogRequestLogging();