Check every WooCommerce refund has a FreshBooks credit

**Objective:** For refunds in the last `{lookback-days}` days (default 30), check that each WooCommerce refund has a FreshBooks credit in company `{company}`.

**Step 1: Read refunds**

Call `woocommerce-get-refund` with `created-date.from` set to today minus `{lookback-days}` days. Keep the refund id, `order-id`, `order-number`, `customer-email`, and amount.

**Step 2: Read credits**

For each distinct `customer-email`, call `freshbooks-get-client` with `email` to get the client `id`. Then call `freshbooks-get-credit` with `customer-id` set to that id and `create-date.from` set to the same start date. Keep `credit-number`, `amount`, `create-date`, `display-status`.

**Step 3: Join and report**

A refund is covered when the client has a credit with the same `amount` created within 7 days of the refund, or whose `credit-number` mentions the order number. Report counts, then refunds with no credit, credits with no refund, and refunds whose client is missing in FreshBooks. Total the uncovered amount.

**Rules & Guidelines:**

* FreshBooks tools (named freshbooks-...) are on the freshbooks server; WooCommerce tools (named woocommerce-...) are on the woocommerce server. Both servers must be connected.
* Pass `{company}` as the company parameter on every FreshBooks call when it is given; if FreshBooks reports more than one company and none was given, ask which one and stop.
* This prompt is read-only. Never call any FreshBooks add, update, delete, mark or send tool (for example `freshbooks-add-invoice`, `freshbooks-add-payment`, `freshbooks-add-credit-note`, `freshbooks-send-invoice-by-email`) or any WooCommerce add, update or send tool (for example `woocommerce-add-order-note`, `woocommerce-update-order`, `woocommerce-send-order-details`).

**Validation:**

* If no refunds come back, say so and stop.
* Several credits of equal amount for one client: list them as ambiguous and do not pair them.