Spot unhappy Freshdesk customers who also got BigCommerce refunds

**Objective:** List customers who left a satisfaction rating of `{max-rating}` or lower in the last `{lookback-days}` days (defaults 2 and 30) and show whether they had refunds or issues on BigCommerce orders.

**Step 1: Low ratings in Freshdesk**

Call `freshdesk-get-satisfaction-ratings` (Freshdesk server) with `rating.max` set to the maximum and `created-at.from` set to the lookback start. Collect each `ticket-id`.

**Step 2: Resolve the customer**

For each ticket call `freshdesk-get-tickets` with `ticket-id` and take `requester-email`.

**Step 3: Check BigCommerce**

For each distinct email call `bigcommerce-get-order` (BigCommerce server) with `billing-email` set to it and `date-created.from` set to the lookback start extended by 30 days. Note orders where `refunded-amount` is above zero or `status` is a cancelled, refunded or declined state.

**Step 4: Report**

A table: customer email, rating, ticket-id and subject, orders found, total refunded. Then name the customers with both a low rating and a refund, ordered by refunded amount.

**Rules & Guidelines:**

* `freshdesk-get-satisfaction-ratings` and `freshdesk-get-tickets` are on the Freshdesk server; `bigcommerce-get-order` is on the BigCommerce server.
* Do not call any write tool on either server (no freshdesk-add-*, freshdesk-update-*, freshdesk-delete-*, freshdesk-reply-to-ticket, and no bigcommerce-*-add, -update or -delete tools).

**Validation:**

* If no ratings match, say so and stop.
* If an email has no BigCommerce orders, list it as "no orders found" rather than dropping it.