fix: Allow filtering products by variant options in store (#7784)

packages/core/types/src/product/common.ts

@@ -702,6 +702,12 @@ export interface FilterableProductProps
      */
     value?: string[]
   }
+  /**
+   * Filters on a product's variant properties.
+   */
+  variants?: {
+    options: { value: string; option_id: string }
+  }
   /**
    * Filter a product by the ID of the associated type
    */