See a buyer's BigCommerce orders and Constant Contact activity

**Objective:** Build a combined purchase and email profile for the customer with email `{email}`, looking at orders from the last `{lookback-days}` days (default 365).

**Step 1: Find the customer in BigCommerce**

Call `bigcommerce-get-customer` (bigcommerce server) with `email` set to `{email}`. If nothing matches, report that the customer is not in BigCommerce and stop. Keep `id`, name, company and customer group.

**Step 2: Get their orders**

Call `bigcommerce-get-order` (bigcommerce server) with `customer-id` set to the customer id and `date-created.from` set to the start of the lookback window. Total the order count and `total-including-tax`, and note the latest order date.

**Step 3: Find them in Constant Contact**

Call `constant-contact-get-contact` (constant-contact server) with `email-address` set to `{email}`. If nothing matches, report the customer as present in BigCommerce and absent from Constant Contact, then skip to the report. Keep `contact-id` and `permission-to-send`.

**Step 4: Get engagement**

Call `constant-contact-get-contact-activity` (constant-contact server) with `contact-id` from Step 3 and `created-date.from` set to the start of the window. Call `constant-contact-get-contact-list-member` (constant-contact server) with the same `contact-id` to list the lists they belong to.

**Step 5: Report**

Give: customer identity, order count, total spend, last order date, send permission, lists, and activity counts by type. End with one sentence on whether engagement and buying line up.

**Rules & Guidelines:**

* `bigcommerce-get-customer` and `bigcommerce-get-order` are on the bigcommerce server; the constant-contact tools are on the constant-contact server.
* Read only. Do not call any add, update or delete tool on either server.

**Validation:**

* Compare emails case-insensitively. Constant Contact may hold the contact under a different email than BigCommerce; if the email lookup fails, also try `constant-contact-get-contact` filtered by `last-name` and flag any match as unconfirmed.
* If more than one BigCommerce customer matches, list them and stop.