Implemented featureflag for service layer caching

PostFundManagement.Application/Services/Users/UserCacheService.cs

@@ -4,14 +4,19 @@ using PostFundManagement.Application.Extensions;
 using PostFundManagement.Application.Services.Shared;
 using PostFundManagement.Domain;
 using PostFundManagement.Domain.Models;
+using static PostFundManagement.Domain.Extensions.Constants;
 
 namespace PostFundManagement.Application.Services.Users;
 
-public sealed class UserCacheService(UserService service, IDistributedCache cache) : ServiceCacheBase, IUserService
+public sealed class UserCacheService(UserService service, IDistributedCache cache, 
+    IFeatureManager featureManager) : ServiceCacheBase, IUserService
 {
     public async ValueTask<Result<User>> GetUserAsync(Guid userId, CancellationToken cancellationToken) =>
         await Result.Try((Func<ValueTask<Result<User>>>)(async () =>
         {
+            if (!await featureManager.IsEnabledAsync(ServiceCachingFeature))
+                return await service.GetUserAsync(userId, cancellationToken);
+
             var cacheKey = HashService.ToMd5Hash($"getuser-{userId}").Value;
 
             var cached = await cache.GetStringAsync(cacheKey, cancellationToken);
@@ -33,6 +38,9 @@ public sealed class UserCacheService(UserService service, IDistributedCache cach
     public async ValueTask<Result<User[]>> GetUsersAsync(Pagination pagination, UserFilterRequest request, CancellationToken cancellationToken = default) =>
         await Result.Try((Func<ValueTask<Result<User[]>>>)(async () =>
         {
+            if (!await featureManager.IsEnabledAsync(ServiceCachingFeature))
+                return await service.GetUsersAsync(pagination, request, cancellationToken);
+
             var cacheKey = HashService.ToMd5Hash($"getusers-{pagination.Page}-{pagination.PageSize}-" +
                 $"{request.Email}-{request.Status}-{request.SortBy}-{request.SortDescending}").Value;