Like an item

Like an item from any type (restaurant, hotel, flight, experience) and add it to the user's default likes list. **Authentication Required:** Yes - Valid JWT token in Authorization header **Request Body:** - **type** (required): Type of item (restaurant, hotel, flight, experience) - **productId** (required): UUID of the item to like - **productObj** (optional): Product object containing item details **Response includes:** - **success**: Boolean indicating success - **message**: Success message - **data**: Object containing like details - **id**: Like record ID - **listId**: List ID (default likes list) - **type**: Type of item liked - **productId**: ID of the item liked - **addedAt**: When the item was added to likes - **[type]**: Product object (if provided) **Usage:** 1. Generate a test token using the `/auth/generate-test-token` endpoint 2. Include the token in the Authorization header: `Bearer <token>` 3. Send POST request with type and productId **Note:** This endpoint automatically creates a default "Likes" list for the user if it doesn't exist. **Error Handling:** - **400**: Invalid request body, missing required fields, or invalid type - **401**: Invalid or missing JWT token - **409**: Item already liked by the user - **503**: Database service temporarily unavailable - **500**: Internal server error