Prove every Shopify order landed in Rillet at the right amount

**Objective:** Reconcile Shopify orders created from `{from-date}` to `{to-date}` (default: the previous calendar month) against Rillet invoices, and report every order that is missing from Rillet, booked at a different amount, or cancelled in Shopify but still open in Rillet.

**Step 1: Read the Shopify orders**

Call `shopify-get-order` with created-at.from and created-at.to set to the date range. For each order note order-id, name, order-number, created-at, currency, subtotal-price, total-tax, total-price, financial-status and cancelled-at.

**Step 2: Read the Rillet invoices**

Call `rillet-get-invoices`. It takes no filters, so keep only invoices whose invoice-date falls within the range plus 7 days either side (booking dates can lag). Note invoice-id, invoice-number, invoice-date, customer-id, currency, subtotal, tax-amount, total, amount-due and status.

**Step 3: Match**

Match each Shopify order to a Rillet invoice whose invoice-number equals the Shopify order name. Compare with and without the leading # ("#1001" and "1001" are the same order). Do not match on amount or date alone.

For each matched pair compare total-price with total, and total-tax with tax-amount, in the same currency. Treat a difference of 0.01 or less as a match.

**Step 4: Report**

A summary line: orders read, invoices in range, matched, missing from Rillet, amount mismatches, cancelled but still open.

Then four tables:

1. Missing from Rillet: order name, created-at, total-price, currency, financial-status.
2. Amount mismatches: order name, Shopify total, Rillet total, Shopify tax, Rillet tax, difference.
3. Cancelled in Shopify, still open in Rillet: order name, cancelled-at, invoice-number, amount-due.
4. Rillet invoices in range with no Shopify order: invoice-number, invoice-date, total. Say these may simply be non-Shopify invoices.

**Rules & Guidelines:**

* `shopify-get-order` is on the shopify server. `rillet-get-invoices` is on the rillet server.
* This prompt is read-only. Do not call `rillet-add-invoice-ar-only`, `rillet-add-invoice`, `rillet-update-invoice`, `rillet-add-invoice-payment`, `shopify-update-order` or any other write tool. To create the missing invoices, use the backfill-shopify-orders prompt.

**Validation:**

* If Shopify returns no orders in the range, say so and stop.
* If Rillet returns no invoices at all, report every order as missing and say the Rillet side may not be booking Shopify sales yet.
* If an order and its invoice are in different currencies, list the pair as a mismatch with both currencies and do not convert.