added translation

src/app/models/category.model.ts

@@ -1,3 +1,11 @@
+/**
+ * Per-language translation content for a category or subcategory.
+ * Stored under `translations['ru']`, `translations['en']`, etc.
+ */
+export interface CategoryTranslation {
+  name?: string;
+}
+
 export interface Category {
   id: string;
   name: string;
@@ -6,6 +14,8 @@ export interface Category {
   img?: string;
   projectId: string;
   subcategories?: Subcategory[];
+  /** Optional translations keyed by language code: { ru: { name: '...' } } */
+  translations?: { [lang: string]: CategoryTranslation };
 }
 
 export interface Subcategory {
@@ -21,4 +31,6 @@ export interface Subcategory {
   itemCount?: number;
   subcategories?: Subcategory[];
   hasItems?: boolean;
+  /** Optional translations keyed by language code: { ru: { name: '...' } } */
+  translations?: { [lang: string]: CategoryTranslation };
 }