Catch Shopify refunds missing from NetSuite

**Objective:** Find Shopify refunds processed from {from-date} to {to-date} (default the last 30 days) that have no matching credit memo or customer refund in NetSuite, checking up to {max-records} refunds (default 50).

**Step 1: Read refunds from Shopify**

Call `shopify-get-refund` (Shopify server) with `created-at.from` set to {from-date}, `created-at.to` set to {to-date} and `max-records` set to {max-records}. Keep `refund-id`, `order-name`, `customer-email`, `total-adjustments` and `processed-at`.

**Step 2: Find the NetSuite customer**

For each distinct `customer-email` call `netsuite-get-customer` (NetSuite server) with `email` set to it and keep `internal-id`. If there is no match, mark the refund as customer not in NetSuite and continue.

**Step 3: Look for the NetSuite credit**

Call `netsuite-get-creditmemo` (NetSuite server) with `customer-id` set to that `internal-id` and `date.from` set to {from-date}. Also call `netsuite-get-customerrefund` (NetSuite server) with `customer-id` set the same way and `date.from` set to {from-date}. A refund is covered if either returns a record dated within 3 days of `processed-at`.

**Step 4: Report**

A table of refunds grouped by outcome: covered, no credit in NetSuite, and customer not in NetSuite. Show `order-name`, `customer-email`, `total-adjustments`, `processed-at` and the NetSuite `document-number` where found. End with counts and the total `total-adjustments` not covered.

**Rules & Guidelines:**

* Tools whose names start with netsuite- are on the NetSuite server; tools whose names start with shopify- are on the Shopify server. Both servers must be connected.
* This is a read-only job. Do not call any tool whose name starts with netsuite-add-, netsuite-update-, shopify-add- or shopify-update-, and never create, change or delete a record on either side.
* Report only what the tools return. Do not estimate or invent figures; totals are sums of rows you actually retrieved, and say so.
* If a read returns the maximum number of rows, say the result may be truncated and suggest narrowing the filters.
* Dates are YYYY-MM-DD. Where an input is blank, use the default stated in the Objective.

**Validation:**

* If the first read returns nothing, say so and stop rather than guessing.
* If a lookup on the other system returns more than one record, list them and mark the row ambiguous instead of choosing one.
* If a lookup returns nothing, report the record as present in one system and absent from the other, and continue with the next row.
* If the two systems disagree on a value, show both values side by side and do not decide which is right.