feat: integrate PYMS payment gateway, add blog/sitepage/image services, local file manager

Payment Gateway:
- Add PYMSPaymentService: IPaymentGatewayService via gRPC to PYMS microservice
- Add ZarinPalPaymentService: direct ZarinPal integration (backup)
- Register 'pyms' payment provider in DI ConfigureServices
- Add PYMS proto files (pyms_transaction.proto, pyms_public_messages.proto)
- Fix VerifyDiscountWalletCharge: pass 'OK' as status instead of Authority
- Update appsettings: PaymentProvider=pyms, sandbox mode, merchant ID

Blog System:
- Add BlogCategory, BlogPost, BlogPostImage entities and CQRS
- Add proto files and gRPC services for blog management
- Add Mapster profiles for blog responses

Content Management:
- Add SitePage entity and CQRS for static pages
- Add proto and gRPC service for site pages

Image/File Management:
- Add LocalFileManager with disk storage + base64 serving + FMS fallback
- Add ImagePathResolverInterceptor for gRPC responses
- Add ImageResolverService for explicit image resolution
- Add UploadsController for public file serving with FMS fallback
- Add PaymentCallbackController for discount order payment callbacks

Database:
- Add blog and content entity migrations
- Remove ImagePath MaxLength constraints
- Remove old FileManagementService (replaced by LocalFileManager)

src/CMSMicroservice.Application/CommissionCQ/Queries/GetAllWeeklyPools/GetAllWeeklyPoolsQuery.cs

@@ -6,14 +6,14 @@ namespace CMSMicroservice.Application.CommissionCQ.Queries.GetAllWeeklyPools;
 public record GetAllWeeklyPoolsQuery : IRequest<GetAllWeeklyPoolsResponseDto>
 {
     /// <summary>
-    /// از هفته (فیلتر اختیاری)
+    /// از هفته — WeekDefinitionId (فیلتر اختیاری)
     /// </summary>
-    public int? FromWeekOrder { get; init; }
+    public long? FromWeekDefinitionId { get; init; }
 
     /// <summary>
-    /// تا هفته (فیلتر اختیاری)
+    /// تا هفته — WeekDefinitionId (فیلتر اختیاری)
     /// </summary>
-    public int? ToWeekOrder { get; init; }
+    public long? ToWeekDefinitionId { get; init; }
 
     /// <summary>
     /// فقط Pool های محاسبه شده

src/CMSMicroservice.Application/CommissionCQ/Queries/GetAllWeeklyPools/GetAllWeeklyPoolsQueryHandler.cs

@@ -20,14 +20,14 @@ public class GetAllWeeklyPoolsQueryHandler : IRequestHandler<GetAllWeeklyPoolsQu
             .AsNoTracking();
 
         // Apply filters
-        if (request.FromWeekOrder!=null)
+        if (request.FromWeekDefinitionId != null)
         {
-            query = query.Where(x => x.WeekDefinition.WeekOrder>=request.FromWeekOrder );
+            query = query.Where(x => x.WeekDefinitionId >= request.FromWeekDefinitionId);
         }
 
-        if (request.ToWeekOrder!=null)
+        if (request.ToWeekDefinitionId != null)
         {
-            query = query.Where(x =>x.WeekDefinition.WeekOrder<= request.ToWeekOrder);
+            query = query.Where(x => x.WeekDefinitionId <= request.ToWeekDefinitionId);
         }
 
         if (request.OnlyCalculated.HasValue && request.OnlyCalculated.Value)