Catch unbooked Stripe refunds and dispute deadlines in Rillet

**Objective:** Trace every Stripe refund and dispute from the last {lookback-days} days (default 30) to the Rillet invoice it relates to, and flag the ones Rillet has not accounted for with a credit memo.

**Step 1: Read Stripe refunds and disputes**

Work out the start date as today minus {lookback-days} days. Call `stripe-get-refund` and `stripe-get-dispute`, each with `created-date.from` = that date. For each, call `stripe-get-charge` with `charge-id` to get the invoice-id. If the charge has no invoice-id, list it under Not invoice-backed. Otherwise call `stripe-get-invoice` with `invoice-id` to get the invoice number.

**Step 2: Find the Rillet side**

Call `rillet-get-invoices` (no filters) and match the Stripe invoice number to invoice-number exactly. For each matched Rillet invoice call `rillet-get-credit-memos` with `invoice-id` = the Rillet invoice-id.

**Step 3: Report**

* Refunds: refund-id, amount, reason, Stripe invoice number, Rillet invoice-id, and the credit memo number and total if one exists. Flag refunds with no credit memo, or whose credit memo total differs from the refund amount.
* Disputes: dispute-id, amount, reason, status, details-due-by, and the Rillet invoice. Flag lost disputes with no credit memo, and list open disputes with evidence due in the next 7 days first.
* Invoice not in Rillet: Stripe refunds or disputes whose invoice number has no Rillet match.
* Not invoice-backed charges.

**Rules & Guidelines:**

* `stripe-get-refund`, `stripe-get-dispute`, `stripe-get-charge` and `stripe-get-invoice` are on the stripe server. `rillet-get-invoices` and `rillet-get-credit-memos` 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` or `rillet-unapply-credit-memo`.

**Validation:**

* If Stripe has no refunds or disputes in the period, say so and stop.
* Stripe amounts may be in the smallest currency unit. If a refund is exactly 100 times its credit memo total, divide Stripe amounts by 100 and say so once.
* If a tool cannot be found, name the server it belongs to (rillet or stripe) and stop.