feat: Implement file management and authorization features

- Add RequiresPermissionAttribute for gRPC method access control.
- Create IFileManagementService interface for file upload and management.
- Implement AddProductImageCommand and handler for adding product images.
- Implement CreateNewProductsCommand and handler for creating new products with image uploads.
- Implement DeleteProductsCommand and handler for deleting products and their associations.
- Implement RemoveProductImageCommand and handler for removing product images from galleries.
- Implement UpdateProductsCommand and handler for updating product details and images.
- Create GetProductGalleryQuery and handler for retrieving product galleries.
- Implement PermissionService for role-based access control using JWT claims.
- Implement FileManagementService for handling file uploads and image optimization.
- Define gRPC service and messages for file management in fms.proto.
- Add FluentValidation for request validation in various commands.
- Create PermissionInterceptor for enforcing permissions on gRPC methods.

src/CMSMicroservice.Protobuf/Protos/discountproduct.proto

@@ -87,6 +87,8 @@ message CreateDiscountProductRequest
     int32 sort_order = 9;
     bool is_active = 10;
     repeated int64 category_ids = 11;
+    ImageFileModel image_file = 12;
+    ImageFileModel thumbnail_file = 13;
 }
 
 message CreateDiscountProductResponse
@@ -108,6 +110,8 @@ message UpdateDiscountProductRequest
     int32 sort_order = 9;
     bool is_active = 10;
     repeated int64 category_ids = 11;
+    ImageFileModel image_file = 12;
+    ImageFileModel thumbnail_file = 13;
 }
 
 // Delete Product
@@ -246,3 +250,11 @@ message DiscountProductImageDto
     int32 sort_order = 7;
     bool is_active = 8;
 }
+
+// File upload model for binary image uploads from BackOffice
+message ImageFileModel
+{
+    bytes file = 1;
+    string mime = 2;
+    string file_name = 3;
+}

src/CMSMicroservice.Protobuf/Protos/fms.proto

@@ -0,0 +1,38 @@
+syntax = "proto3";
+
+package fms;
+
+import "google/protobuf/wrappers.proto";
+
+option csharp_namespace = "CMSMicroservice.Protobuf.Protos.FMS";
+
+service FileInfoContract
+{
+    rpc CreateNewFileInfo(CreateNewFileInfoRequest) returns (CreateNewFileInfoResponse);
+    rpc DeleteFileInfo(DeleteFileInfoRequest) returns (DeleteFileInfoResponse);
+}
+
+message CreateNewFileInfoRequest
+{
+    string directory = 1;
+    bytes file = 2;
+    string mime = 3;
+    bool is_base64 = 4;
+    google.protobuf.StringValue file_name = 5;
+}
+
+message CreateNewFileInfoResponse
+{
+    int64 id = 1;
+    string file = 2;
+}
+
+message DeleteFileInfoRequest
+{
+    int64 id = 1;
+}
+
+message DeleteFileInfoResponse
+{
+    bool success = 1;
+}

src/CMSMicroservice.Protobuf/Protos/inventory.proto

@@ -270,6 +270,8 @@ message InventoryItemDto {
     string product_title = 15;
     int64 product_price = 16;
     google.protobuf.Timestamp created = 17;
+    // آیا موجودی کم است (موجودی قابل فروش کمتر از حد هشدار)
+    bool is_low_stock = 18;
 }
 
 message GetInventoryItemRequest {

src/CMSMicroservice.Protobuf/Protos/manualpayment.proto

@@ -78,6 +78,7 @@ message CreateManualPaymentRequest
     google.protobuf.StringValue reference_number = 5;
     google.protobuf.StringValue image_path = 6;
     google.protobuf.Int64Value image_document_id = 7;
+    FileUploadModel image_file = 8;
 }
 
 message CreateManualPaymentResponse
@@ -155,3 +156,11 @@ message ProcessManualMembershipPaymentResponse
     string message = 4;
 }
 
+// File upload model for binary image uploads from BackOffice
+message FileUploadModel
+{
+    bytes file = 1;
+    string file_name = 2;
+    string mime = 3;
+}
+

src/CMSMicroservice.Protobuf/Protos/package.proto

@@ -113,6 +113,7 @@ message CreateNewPackageRequest
     string description = 2;
     string image_path = 3;
     int64 price = 4;
+    BoostCardFileModel image_file = 5;
 }
 message CreateNewPackageResponse
 {
@@ -125,6 +126,7 @@ message UpdatePackageRequest
     string description = 3;
     string image_path = 4;
     int64 price = 5;
+    BoostCardFileModel image_file = 6;
 }
 message DeletePackageRequest
 {
@@ -412,3 +414,11 @@ enum PaymentStatusEnum
     PAYMENT_STATUS_FAILED = 2;
     PAYMENT_STATUS_REFUNDED = 3;
 }
+
+// File upload model for binary image uploads from BackOffice
+message BoostCardFileModel
+{
+    bytes file = 1;
+    string file_name = 2;
+    string mime = 3;
+}

src/CMSMicroservice.Protobuf/Protos/products.proto

@@ -79,6 +79,50 @@ service ProductsContract
             get: "/Customer/GetProducts"
         };
     };
+    
+    // ============= Category-Product DragDrop Methods =============
+    
+    rpc GetProductsForCategory(GetProductsForCategoryRequest) returns (GetProductsForCategoryResponse){
+        option (google.api.http) = {
+            get: "/GetProductsForCategory"
+        };
+    };
+    rpc GetCategories(GetCategoriesRequest) returns (GetCategoriesResponse){
+        option (google.api.http) = {
+            get: "/GetCategories"
+        };
+    };
+    rpc UpdateProductCategories(UpdateProductCategoriesRequest) returns (google.protobuf.Empty){
+        option (google.api.http) = {
+            post: "/UpdateProductCategories"
+            body: "*"
+        };
+    };
+    rpc UpdateCategoryProducts(UpdateCategoryProductsRequest) returns (google.protobuf.Empty){
+        option (google.api.http) = {
+            post: "/UpdateCategoryProducts"
+            body: "*"
+        };
+    };
+    
+    // ============= Product Image Management =============
+    
+    rpc AddProductImage(AddProductImageRequest) returns (AddProductImageResponse){
+        option (google.api.http) = {
+            post: "/AddProductImage"
+            body: "*"
+        };
+    };
+    rpc RemoveProductImage(RemoveProductImageRequest) returns (google.protobuf.Empty){
+        option (google.api.http) = {
+            delete: "/RemoveProductImage"
+        };
+    };
+    rpc GetProductGallery(GetProductGalleryRequest) returns (GetProductGalleryResponse){
+        option (google.api.http) = {
+            get: "/GetProductGallery"
+        };
+    };
 }
 message CreateNewProductsRequest
 {
@@ -96,6 +140,10 @@ message CreateNewProductsRequest
     int32 remaining_count = 12;
     // لیست شناسه دسته‌بندی‌های محصول
     repeated int64 category_ids = 13;
+    // فایل تصویر اصلی محصول (آپلود باینری)
+    ImageFileModel image_file = 14;
+    // فایل تصویر بندانگشتی محصول (آپلود باینری)
+    ImageFileModel thumbnail_file = 15;
 }
 message CreateNewProductsResponse
 {
@@ -118,6 +166,10 @@ message UpdateProductsRequest
     int32 remaining_count = 13;
     // لیست شناسه دسته‌بندی‌های محصول
     repeated int64 category_ids = 14;
+    // فایل تصویر اصلی محصول (آپلود باینری)
+    ImageFileModel image_file = 15;
+    // فایل تصویر بندانگشتی محصول (آپلود باینری)
+    ImageFileModel thumbnail_file = 16;
 }
 message DeleteProductsRequest
 {
@@ -334,3 +386,97 @@ message ToggleProductStatusResponse
     int32 failed = 3;
     repeated BulkOperationError errors = 4;
 }
+
+// Category Product Item (for drag-drop UI)
+message CategoryProductItem
+{
+    int64 id = 1;
+    string title = 2;
+    bool selected = 3;
+}
+
+// Get Products for Category
+message GetProductsForCategoryRequest
+{
+    int64 category_id = 1;
+}
+
+message GetProductsForCategoryResponse
+{
+    repeated CategoryProductItem items = 1;
+}
+
+// Category Item (for product categories drag-drop)
+message CategoryItem
+{
+    int64 id = 1;
+    string title = 2;
+    bool selected = 3;
+}
+
+// Get Categories for Product
+message GetCategoriesRequest
+{
+    int64 product_id = 1;
+}
+
+message GetCategoriesResponse
+{
+    repeated CategoryItem items = 1;
+}
+
+// Update Product Categories
+message UpdateProductCategoriesRequest
+{
+    int64 product_id = 1;
+    repeated int64 category_ids = 2;
+}
+
+// Update Category Products
+message UpdateCategoryProductsRequest
+{
+    int64 category_id = 1;
+    repeated int64 product_ids = 2;
+}
+
+// Image File Model
+message ImageFileModel
+{
+    bytes file = 1;
+    string mime = 2;
+    string file_name = 3;
+}
+
+// Get Product Gallery
+message GetProductGalleryRequest
+{
+    int64 product_id = 1;
+}
+
+message GetProductGalleryResponse
+{
+    repeated ProductGalleryItem items = 1;
+}
+
+// Add Product Image
+message AddProductImageRequest
+{
+    int64 product_id = 1;
+    string title = 2;
+    ImageFileModel image_file = 3;
+}
+
+message AddProductImageResponse
+{
+    int64 product_gallery_id = 1;
+    int64 product_image_id = 2;
+    string title = 3;
+    string image_path = 4;
+    string image_thumbnail_path = 5;
+}
+
+// Remove Product Image
+message RemoveProductImageRequest
+{
+    int64 product_gallery_id = 1;
+}