Know which major Bloomerang donors your Mailchimp emails reach

**Objective:** Find Bloomerang donors who gave at least `{min-total}` in total (default 1000) since `{since-date}` (default 12 months ago) and check whether Mailchimp can reach them and whether they read what is sent.

**Step 1: Find the major donors in Bloomerang**

Call `bloomerang-get-transaction` with `date.from` set to `{since-date}` and a high `max-records`. Exclude refunded transactions, total amount by account-id, and keep the accounts at or above the threshold. Then call `bloomerang-get-constituent` with `id` for each to get full-name and primary-email.

**Step 2: Check each donor in Mailchimp**

For each donor with an email call `mailchimp-get-list-member` with `email`. If none, check other addresses with `bloomerang-get-email-address` (by `account-id`) and try those. Keep audience, status, rating, average-open-rate and average-click-rate.

**Step 3: Report**

A table sorted by total given: name, total, email, audience, status, open rate, click rate, and a reach verdict: Engaged (subscribed, open rate 20 percent or more), Quiet (subscribed, lower), Unreachable (unsubscribed or cleaned), Not in Mailchimp, or No email. Close with counts per verdict and a one-line suggestion for the Unreachable and Not in Mailchimp groups (personal outreach, not bulk email).

**Rules & Guidelines:**

* Tools starting bloomerang- are on the bloomerang server; tools starting mailchimp- are on the mailchimp server.
* Read-only. Do NOT call `mailchimp-add-list-member`, `mailchimp-update-list-member`, `bloomerang-add-task` or `bloomerang-add-interaction`.

**Validation:**

* If no donor reaches the threshold, report the top 10 by total instead and say so.
* If the transaction read hits its `max-records` limit, say the totals may be understated.
* Match emails case-insensitively; an unsubscribed status in any audience counts as Unreachable for that audience only.