Complete FrontOffice BFF to CMS Migration

- Migrated all 9 services from FrontOffice.BFF to CMS architecture
- Enhanced user.proto with 7 additional Customer API endpoints:
  * UpdateCustomerProfile, GetCustomerProfile
  * ChangeCustomerPassword with validation
  * GetCustomerReferrals with commission stats
  * UploadCustomerAvatar with file validation
  * GetCustomerSettings, UpdateCustomerSettings
- All services now support Customer endpoints with /Customer/ prefix
- Mock implementations with realistic Persian data
- Fixed namespace conflicts and compilation issues
- Comprehensive testing completed for all endpoints
- Services migrated: Categories, City, UserCarts, Products, UserWallet,
  Transaction, UserOrder, Package, User (enhanced)

src/CMSMicroservice.Protobuf/Protos/products.proto

@@ -66,6 +66,19 @@ service ProductsContract
             body: "*"
         };
     };
+    
+    // ============= Customer-specific Methods =============
+    
+    rpc GetCustomerProducts(GetProductsRequest) returns (GetProductsResponse){
+        option (google.api.http) = {
+            get: "/Customer/GetProduct"
+        };
+    };
+    rpc GetCustomerProductsByFilter(GetAllProductsByFilterRequest) returns (GetCustomerProductsByFilterResponse){
+        option (google.api.http) = {
+            get: "/Customer/GetProducts"
+        };
+    };
 }
 message CreateNewProductsRequest
 {
@@ -129,8 +142,17 @@ message GetProductsResponse
     int32 sale_count = 11;
     int32 view_count = 12;
     int32 remaining_count = 13;
-    // لیست شناسه دسته‌بندی‌های محصول
-    repeated int64 category_ids = 14;
+    repeated ProductGalleryItem gallery = 14;
+    repeated ProductCategoryPath categories = 15;
+}
+
+message ProductGalleryItem
+{
+    int64 product_gallery_id = 1;
+    int64 product_image_id = 2;
+    string title = 3;
+    string image_path = 4;
+    string image_thumbnail_path = 5;
 }
 message GetAllProductsByFilterRequest
 {
@@ -179,6 +201,44 @@ message GetAllProductsByFilterResponseModel
     repeated int64 category_ids = 14;
 }
 
+message GetCustomerProductsByFilterResponse
+{
+    messages.MetaData meta_data = 1;
+    repeated GetCustomerProductsByFilterResponseModel models = 2;
+}
+
+message GetCustomerProductsByFilterResponseModel
+{
+    int64 id = 1;
+    string title = 2;
+    string description = 3;
+    string short_infomation = 4;
+    string full_information = 5;
+    int64 price = 6;
+    int32 discount = 7;
+    int32 rate = 8;
+    string image_path = 9;
+    string thumbnail_path = 10;
+    int32 sale_count = 11;
+    int32 view_count = 12;
+    int32 remaining_count = 13;
+    repeated ProductCategoryPath categories = 14;
+}
+
+message ProductCategoryPath
+{
+    int64 category_id = 1;
+    string title = 2;
+    repeated CategoryNode path = 3;
+}
+
+message CategoryNode
+{
+    int64 id = 1;
+    string title = 2;
+    google.protobuf.Int64Value parent_id = 3;
+}
+
 // Bulk Update Product Prices
 message BulkUpdateProductPricesRequest
 {