Tie Constant Contact campaign engagement to NetSuite revenue

**Objective:** For the Constant Contact campaign named {campaign-name}, find the contacts who clicked or opened it and report their NetSuite invoicing in the {window-days} days after the send (default 30).

**Step 1: Find the campaign**

Call `constant-contact-get-campaign` with `name.contains` = {campaign-name}. If more than one matches, list them and stop. Keep `campaign-id` and the last sent date.

**Step 2: Get engaged contacts**

Call `constant-contact-get-campaign-click` with that `campaign-id`, and `constant-contact-get-campaign-open` with the same `campaign-id`. Build a de-duplicated list of email addresses, marking each as clicker or opener only.

**Step 3: Match to NetSuite**

For each email (cap at 40, clickers first), call `netsuite-get-customer` with `email`. Keep the internal-id. Count the unmatched.

**Step 4: Get invoices**

For each matched customer call `netsuite-get-invoice` with `customer-id`, `date.from` = the send date and `date.to` = the send date plus the window. Sum the invoice totals.

**Step 5: Report**

A table by customer: email, clicker or opener, invoice count, invoiced total. Then totals for clickers and for openers only, and the number of engaged contacts not found in NetSuite. State plainly that this is correlation, not proof the campaign caused the sale.

**Rules & Guidelines:**

* `netsuite-*` tools are on the netsuite server; `constant-contact-*` tools are on the constant-contact server. Both servers must be connected.
* This prompt is read-only. Never call any `netsuite-add-*` or `netsuite-update-*` tool, and never call `constant-contact-add-*`, `constant-contact-update-*` or `constant-contact-resend-campaign-to-non-openers`.
* Match the two systems on email address, case-insensitive. If a record has no email, report it as unmatched and continue.

**Validation:**

* If nobody engaged, report that and stop.
* If more than 40 emails exist, say how many were skipped.