Minor version bump (1.x.0) is appropriate because:

✅ New functionality added (soft delete system)
✅ Backward compatible (existing features unchanged)
✅ Significant enhancement (complete temporal tracking system)
✅ API additions (new endpoints, parameters)
✅ UI enhancements (new components, visual indicators)

frontend/src/types/index.ts

@@ -30,6 +30,7 @@ export interface Product {
   organic: boolean;
   weight?: number;
   weight_unit: string;
+  deleted?: boolean;
   created_at: string;
   updated_at?: string;
 }
@@ -41,6 +42,7 @@ export interface ProductCreate {
   organic: boolean;
   weight?: number;
   weight_unit: string;
+  valid_from?: string; // Optional: ISO date string (YYYY-MM-DD), defaults to current date if not provided
 }
 
 export interface Shop {