Find Shopify orders that never made it into Dynamics GP

**Objective:** For Shopify orders created in the last `{lookback-days}` days (default 7), find the matching Dynamics GP Sales Order Processing document and report orders that are missing from GP or whose totals disagree.

**Step 1: Read the Shopify orders**

Call `shopify-get-order` (Shopify server) with `created-at.from` = today minus `{lookback-days}` days and `max-records` = 250. Skip orders with a `cancelled-at` value and list them separately. Keep `name`, `order-number`, `email`, `total-price`, `total-tax`, `financial-status` and `created-at`.

**Step 2: Find each order in Dynamics GP**

The Shopify order `name` (for example #1001) is carried into GP as the `customer-po-number`. For each order call `dynamics-gp-get-rm-sales-trx` (Dynamics GP server) with `customer-po-number` = the order `name`, passing `company` = `{gp-company}` when it is given. If nothing comes back, retry once with the `name` without its leading # and once with the plain `order-number`, and note which form matched.

If several GP documents match (for example an order and the invoice it became), prefer the invoice, and list the others.

If none match, report the order as in Shopify and missing from GP, and continue.

**Step 3: Report**

1. Missing from GP: order name, date, customer email, total.
2. Total mismatches: order name, Shopify total, GP `document-amount`, Shopify tax, GP `tax-amount`, difference, GP `sop-number` and `sop-type`.
3. A one-line count of orders that matched cleanly, and the list of cancelled orders skipped.

**Rules & Guidelines:**

* `shopify-get-order` is on the Shopify server; `dynamics-gp-get-rm-sales-trx` is on the Dynamics GP server.
* This is read-only. Do NOT call `dynamics-gp-rm-sales-trx-add`, `dynamics-gp-rm-sales-line-item-add` or `shopify-update-order`. To post a missing order, the user can run the post-shopify-order-to-gp prompt.

**Validation:**

* If Shopify returns no orders, say so and stop.
* Treat a difference of less than 0.01 as a match.