[PM-2844] Updated SyncController and PolicyService to use some ErrorCodes for exceptions

Author: r-tome

src/Api/Vault/Controllers/SyncController.cs

@@ -1,4 +1,5 @@
 using Bit.Api.Vault.Models.Response;
+using Bit.Core;
 using Bit.Core.Entities;
 using Bit.Core.Enums;
 using Bit.Core.Enums.Provider;
@@ -59,7 +60,7 @@ public async Task<SyncResponseModel> Get([FromQuery] bool excludeDomains = false
         var user = await _userService.GetUserByPrincipalAsync(User);
         if (user == null)
         {
-            throw new BadRequestException("User not found.");
+            throw new BadRequestException(ErrorCodes.UserNotFound);
         }
 
         var organizationUserDetails = await _organizationUserRepository.GetManyDetailsByUserAsync(user.Id,

src/Core/Services/Implementations/PolicyService.cs

@@ -49,7 +49,7 @@ public async Task SaveAsync(Policy policy, IUserService userService, IOrganizati
 
         if (!org.UsePolicies)
         {
-            throw new BadRequestException("This organization cannot use policies.");
+            throw new BadRequestException(ErrorCodes.OrganizationCannotUsePolicies);
         }
 
         // Handle dependent policy checks
@@ -281,7 +281,7 @@ private async Task RequiredBySsoTrustedDeviceEncryptionAsync(Organization org)
         var ssoConfig = await _ssoConfigRepository.GetByOrganizationIdAsync(org.Id);
         if (ssoConfig?.GetData()?.MemberDecryptionType == MemberDecryptionType.TrustedDeviceEncryption)
         {
-            throw new BadRequestException("Trusted device encryption is on and requires this policy.");
+            throw new BadRequestException(ErrorCodes.PolicyRequiredByTrustedDeviceEncryption);
         }
     }
 }