Add ItemMerchantsController and Update Routes/Tests
Controller: Added Api::V1::ItemMerchantsController with an index action that retrieves all items for a specific merchant based on the merchant ID.
Routes: Updated config/routes.rb to include a new route for fetching items of a merchant: GET /api/v1/merchants/:id/items.
Tests: Added a new RSpec test to verify that the endpoint correctly returns all items for a given merchant. Updated existing tests for MerchantItems to ensure accuracy.
This PR introduces a new feature to fetch items by merchant ID and updates related routes and tests.
Add ItemMerchantsController and Update Routes/Tests
This PR introduces a new feature to fetch items by merchant ID and updates related routes and tests.