Win back lapsed WooCommerce buyers through Drip

**Objective:** Enroll repeat WooCommerce customers who have not ordered in `{inactive-days}` days (default 180) and had at least `{min-orders}` earlier orders (default 2) in the Drip campaign matching `{campaign-name}`.

**Step 1: Find the Drip campaign**

Call `drip-get-campaign` with `name.contains` set to `{campaign-name}`. If none or several match, list them and stop. Note the campaign-id and status. If the status is not active, warn the user that people added will not receive emails until it is activated.

**Step 2: Find lapsed repeat buyers**

Compute the cutoff as today minus `{inactive-days}` days. Call `woocommerce-get-order` with `created-date.to` set to the cutoff, `status` set to completed and `max-records` set to 500, and count orders per customer email; keep emails with at least `{min-orders}` orders. Then call `woocommerce-get-order` with `created-date.from` set to the cutoff and `max-records` set to 500, and remove every email that ordered since then.

**Step 3: Check them in Drip**

Call `drip-get-campaign-subscriber` with `campaign-id` set to the campaign's id and remove anyone already in it. For each remaining email, call `drip-get-subscriber` with `email` set to it. Keep only active subscribers; set aside the unsubscribed and those not in Drip.

**Step 4: Confirm**

Show a table of people to enroll: email, order count, last order date, lifetime total per currency. Show counts for the set-aside groups. Ask the user to confirm. Do not continue without a clear yes.

**Step 5: Enroll and verify**

For each confirmed person, call `drip-add-subscriber-to-campaign` once with `campaign_id` set to the campaign-id and `email` set to their email. Then call `drip-get-campaign-subscriber` with the campaign-id and confirm they appear. Report enrolled, failed and skipped by reason.

**Rules & Guidelines:**

* Tools whose names start with drip- are on the drip server; tools whose names start with woocommerce- are on the woocommerce server. Both servers must be connected.
* Match people across the two systems by email, compared case-insensitively with surrounding spaces removed. Drip uses `email`; WooCommerce uses `email` on customers and `customer-email` on orders, order lines and refunds.
* Compute dates as today minus the stated number of days and pass them as YYYY-MM-DD.
* The only write allowed is `drip-add-subscriber-to-campaign`, for active Drip subscribers only, after the user confirms in Step 4.
* Never enroll people who are unsubscribed or not in Drip: this tool creates missing people in Drip, which would email someone who never opted in.
* Do not call `drip-activate-campaign`; activating the campaign is the user's decision.
* Make no changes in WooCommerce. Do not call `woocommerce-add-customer`, `woocommerce-update-customer`, `woocommerce-update-order`, `woocommerce-add-order-note`, `woocommerce-add-coupon` or `woocommerce-add-refund`.

**Validation:**

* If either order call returns exactly 500 records, say the results may be incomplete.
* If no one qualifies, say so and stop without writing anything.
* Never add amounts in different currencies together; total each currency separately.