See the support load behind your top Shopify customers

**Objective:** Identify the top `{customer-count}` Shopify customers by `total-spent` (default 10) and report their Freshdesk ticket load over the last `{lookback-days}` days (default 90).

**Step 1: Top customers (Shopify server)**

Call `shopify-get-customer` with `total-spent.min` set to `{min-spend}` (default 0) and a large `max-records`. Sort the result by `total-spent` descending and keep the top `{customer-count}`. Note `email`, `name`, `total-spent`, `orders-count`.

**Step 2: Tickets (Freshdesk server)**

For each kept customer with an email, call `freshdesk-get-tickets` with `requester-email` set to it and `created-at.from` at the lookback date. Count total, open, escalated and the highest priority.

**Step 3: Report**

Table: customer, total spent, orders, tickets, open, escalated. Flag customers with open escalated tickets as at-risk accounts, and customers with large spend and zero tickets as healthy. List customers with no email as unchecked.

**Rules & Guidelines:**

* `shopify-get-customer` is on the Shopify server; `freshdesk-get-tickets` is on the Freshdesk server.
* Read-only. Never call `freshdesk-update-ticket`, `freshdesk-reply-to-ticket` or any add, update or delete tool.

**Validation:**

* A customer with no Freshdesk tickets is a valid result, not an error.
* Match on email only, case-insensitively.