Check WooCommerce refunds and Rillet credit memos agree

**Objective:** Check every WooCommerce refund made from `{from-date}` to `{to-date}` (default: the previous calendar month) against Rillet credit memos, and report refunds with no memo, memos at a different amount, and memos not applied to the order's invoice.

**Step 1: Read the WooCommerce refunds**

Call `woocommerce-get-refund` with created-date.from and created-date.to set to the range. Note refund-id, order-id, order-number, created-date, amount (as a positive number), reason and refunded-payment.

**Step 2: Read the Rillet side**

* Call `rillet-get-credit-memos` with credit-memo-date.from 7 days before `{from-date}` and credit-memo-date.to 7 days after `{to-date}`. Note credit-memo-id, credit-memo-number, credit-memo-date, customer-id, invoice-id, total, currency and status.
* Call `rillet-get-invoices` (no filters) and index invoices by invoice-number, so each refund's order can be found by order-number (with or without a leading #) or order-id.

**Step 3: Match**

For each refund, in this order:

1. A memo whose credit-memo-number is R- followed by the refund-id: exact match.
2. Otherwise a memo on the order's invoice-id whose total equals the refund amount within 0.01: probable match.

**Step 4: Report**

A summary line: refunds read, total refunded, matched, probable, not credited.

Then these tables:

1. Not credited in Rillet: order-number, refund-id, date, amount, reason, and whether the order has a Rillet invoice at all.
2. Amount differs: refund-id, WooCommerce amount, Rillet memo total, difference.
3. Credited but not applied to the order's invoice: refund-id, credit-memo-number, memo invoice-id (empty if unapplied), status.
4. Refunded outside the payment gateway: refunds whose refunded-payment shows the money went back by hand. Say these need the cash refund checked separately.
5. Rillet memos in the widened range matching no refund: credit-memo-number, date, total. Say these may belong to other sales channels.

**Rules & Guidelines:**

* `woocommerce-get-refund` is on the woocommerce server. `rillet-get-credit-memos` and `rillet-get-invoices` are on the rillet server.
* This prompt is read-only. Do not call `rillet-add-credit-memo`, `rillet-apply-credit-memo`, `rillet-update-credit-memo`, `woocommerce-add-refund` or any other write tool. To book the missing credits, use the book-woocommerce-refunds prompt.

**Validation:**

* If there are no refunds in the range, say so and stop.
* If amounts are in different currencies, show both and do not convert.