See which contacts on a Nutshell account joined your webinars

**Objective:** For the Nutshell account named `{account-name}`, show which of its contacts registered for or attended GoTo Webinar webinars in the last `{lookback-days}` days (default 90).

**Step 1: Find the account (Nutshell server)**

Call `nutshell-get-account` with `name.contains` set to the account name. If more than one matches, list them and stop. If none match, say so and stop.

**Step 2: Get its contacts and leads (Nutshell server)**

Call `nutshell-get-contact` with `company-id` set to the account `id`, and `nutshell-get-lead` with `company-id` set to the same `id`. Keep each contact's `name` and `emails`.

**Step 3: Find their webinar activity (GoTo Webinar server)**

For each contact email call `goto-webinar-get-registrant` with `email` set to that address, and `goto-webinar-get-attendee` with the same `email`. Use `registration-date.from` and `date-attended.from` set to the start of the lookback window. A contact with several emails is checked on each.

**Step 4: Report**

A table of contacts with webinars registered, webinars attended (`webinar-name`, `date-attended`, `total-time-attended`), then the account's open leads (`name`, `value`, `status`). End with a one-line read on whether engagement is strong, weak or absent.

**Rules & Guidelines:**

* `nutshell-get-account`, `nutshell-get-contact` and `nutshell-get-lead` are on the Nutshell server; `goto-webinar-get-registrant` and `goto-webinar-get-attendee` are on the GoTo Webinar server.
* Read only. Do NOT call `nutshell-update-company`, `nutshell-add-activity`, `goto-webinar-add-registrant`, `goto-webinar-delete-registrant` or any add, update or delete tool.

**Validation:**

* A contact with no email is listed as Not checkable.
* If no contact has any webinar activity, say so rather than guessing.